Edentulous Jaw, Edentulous Mouth
Conditions
Keywords
Bilateral Balanced Occlusion, Canine Guidance, Complete Denture, Denture Retention, Dental Occlusion, Edentulous, Edentulism, Mandibular movement, Mastication, Patient Acceptance of Health Care, Patient Satisfaction
Brief summary
The objective of this study is to compare the canine guidance (CG) and bilateral balanced occlusion (BBO) on denture satisfaction and kinesiographic parameters of complete denture wearers, by means of a cross-over trial. Edentulous patients will receive new maxillary and mandibular complete dentures and, after the intraoral adjustments and adaptation period, will randomly receive a sequence of occlusal schemes: BBO followed by CG, or CG followed by BBO.
Detailed description
Reference for published version of the complete study: Paleari AG, Marra J, Rodriguez LS, De Souza RF, Pero AC, De A Mollo Jr F, Compagnoni MA. A cross-over randomised clinical trial of eccentric occlusion in complete dentures.J Oral Rehabil. 2012 Apr 9. doi: 10.1111/j.1365-2842.2012.02299.x. \[Epub ahead of print\]
Interventions
PROCEDUREOcclusal scheme
Before enrollment, all participants will receive conventional complete dentures adjusted according to the bilateral balanced occlusion concept. Following randomization, canine guidance will be achieved by adding composite resin (Restorative Z100, 3M Brazil, Sumaré, SP, Brazil) on the lingual surface of the maxillary canines. A sham comparator will also employ the addition of composite, but without changing eccentric contacts.
Sponsors
Fundação de Amparo à Pesquisa do Estado de São Paulo
University of Sao Paulo
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
45 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Adult patients needing new complete dentures * Mentally receptiveness * Absence of dysfunctional disorders of the masticatory system * Normal volume and resilience of residual edentulous ridges * Absence of debilitating systemic diseases
Exclusion criteria
* Use of cardiac pacemaker * Refusal to participate or inability to provide informed consent
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Denture Satisfaction | 30 days | Assessed by a questionnaire questionnaire based on the criteria used by Celebic and Knezovic-Zlataric (A comparison of patient's satisfaction between complete and partial removable denture wearers. J Dent. 2003;21:445-451) and used by Souza et al. (Validation of the Brazilian versions of two inventories for measuring oral health-related quality of life of edentulous subjects. Gerodontology. 2012;29:e88-95.). Eight questions were answered according to a three-point scale (0=unsatisfactory; 1=regular; 2=good), whose sum provided a summary satisfaction score that ranged from 0 (the participant is completely dissatisfied with existing dentures) to 16 (maximum satisfaction). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Kinesiographic Parameters -- (1.b) Maximum Mouth Opening, Anteroposterior Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (1.c) Maximum Mouth Opening, Left-right Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (2.a) Rest Position, Vertical Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (2.b) Rest Position, Anteroposterior Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (2.c) Rest Position, Left-right Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (1.a) Maximum Mouth Opening, Vertical Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (3.b) Mandibular Chewing Movement, Anteroposterior Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (3.c) Mandibular Chewing Movement, Left-right Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (4.a) Upper Denture Base Movement, Vertical Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (4.b) Upper Denture Base Movement, Anteroposterior Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (4.c) Upper Denture Base Movement, Left-right Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
| Kinesiographic Parameters -- (3.a) Mandibular Chewing Movement, Vertical Axis | 30 days | Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately. |
Countries
Brazil
Participant flow
Recruitment details
Recruitment period: July to December 2012. Convenience sample composed by 50 patients, who had volunteered to receive new complete dentures at Araraquara Dental School - UNESP.
Pre-assignment details
Participants waited 30 days following the completion of treatment, in order to have them functionally adapted to their new dentures. Six spontaneously declined to participate before random assignment due to lack of interest.
Participants by arm
| Arm | Count |
|---|---|
| Canine Guidance, Then Bilateral Balanced Occlusion Canine guidance: Complete dentures adjusted with mutually protected articulation in which the vertical and horizontal overlap of the canine teeth disengage the posterior teeth in the excursive movements of the mandible (The Glossary of Prosthodontic Terms. J. Prosthet. Dent., 94(1): 10-92); Bilateral Balanced Occlusion: Complete dentures as conventionally adjusted, i.e. anterior and posterior teeth presented bilateral contact in excentric positions | 22 |
| Bilateral Balanced Occlusion Then Canine Guidance Bilateral Balanced Occlusion: Complete dentures as conventionally adjusted, i.e. anterior and posterior teeth presented bilateral contact in excentric positions; Canine guidance: Complete dentures adjusted with mutually protected articulation in which the vertical and horizontal overlap of the canine teeth disengage the posterior teeth in the excursive movements of the mandible (The Glossary of Prosthodontic Terms. J. Prosthet. Dent., 94(1): 10-92); | 22 |
| Total | 44 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Period 1 (30 Days) | Withdrawal by Subject | 3 | 0 |
Baseline characteristics
| Characteristic | Bilateral Balanced Occlusion Then Canine Guidance | Canine Guidance, Then Bilateral Balanced Occlusion | Total |
|---|---|---|---|
| Age, Categorical <=18 years | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical >=65 years | 11 Participants | 11 Participants | 22 Participants |
| Age, Categorical Between 18 and 65 years | 11 Participants | 11 Participants | 22 Participants |
| Age, Continuous | 66.4 years STANDARD_DEVIATION 10.3 | 65.5 years STANDARD_DEVIATION 10.6 | 66.0 years STANDARD_DEVIATION 10.5 |
| Region of Enrollment Brazil | 22 participants | 22 participants | 44 participants |
| Sex: Female, Male Female | 14 Participants | 14 Participants | 28 Participants |
| Sex: Female, Male Male | 8 Participants | 8 Participants | 16 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — |
| other Total, other adverse events | 0 / 44 | 0 / 41 |
| serious Total, serious adverse events | 0 / 44 | 0 / 41 |
Outcome results
Primary
Denture Satisfaction
Assessed by a questionnaire questionnaire based on the criteria used by Celebic and Knezovic-Zlataric (A comparison of patient's satisfaction between complete and partial removable denture wearers. J Dent. 2003;21:445-451) and used by Souza et al. (Validation of the Brazilian versions of two inventories for measuring oral health-related quality of life of edentulous subjects. Gerodontology. 2012;29:e88-95.). Eight questions were answered according to a three-point scale (0=unsatisfactory; 1=regular; 2=good), whose sum provided a summary satisfaction score that ranged from 0 (the participant is completely dissatisfied with existing dentures) to 16 (maximum satisfaction).
Time frame: 30 days
Population: Convenience sampling.
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Canine Guidance | Denture Satisfaction | 15 units on a scale |
| Bilateral Balanced Occlusion | Denture Satisfaction | 15 units on a scale |
Comparison: Statistical analysis was performed by a researcher who was unaware of all procedures performed. The questionnaire about denture satisfaction originated a general score that was compared using the Wilcoxon test, according to the two tested conditions.p-value: 0.569Wilcoxon (Mann-Whitney)
Secondary
Kinesiographic Parameters -- (1.a) Maximum Mouth Opening, Vertical Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (1.a) Maximum Mouth Opening, Vertical Axis | 30.3 mm | Standard Deviation 4.5 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (1.a) Maximum Mouth Opening, Vertical Axis | 30.9 mm | Standard Deviation 4.6 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.339t-test, 2 sided
Secondary
Kinesiographic Parameters -- (1.b) Maximum Mouth Opening, Anteroposterior Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (1.b) Maximum Mouth Opening, Anteroposterior Axis | 25.1 mm | Standard Deviation 9.4 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (1.b) Maximum Mouth Opening, Anteroposterior Axis | 25.8 mm | Standard Deviation 8.8 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.515t-test, 2 sided
Secondary
Kinesiographic Parameters -- (1.c) Maximum Mouth Opening, Left-right Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (1.c) Maximum Mouth Opening, Left-right Axis | 1.4 mm | Standard Deviation 1.3 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (1.c) Maximum Mouth Opening, Left-right Axis | 1.7 mm | Standard Deviation 2.4 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.485t-test, 2 sided
Secondary
Kinesiographic Parameters -- (2.a) Rest Position, Vertical Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (2.a) Rest Position, Vertical Axis | 2.1 mm | Standard Deviation 1.2 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (2.a) Rest Position, Vertical Axis | 2.3 mm | Standard Deviation 1.1 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.111t-test, 2 sided
Secondary
Kinesiographic Parameters -- (2.b) Rest Position, Anteroposterior Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (2.b) Rest Position, Anteroposterior Axis | 1.9 mm | Standard Deviation 1 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (2.b) Rest Position, Anteroposterior Axis | 1.9 mm | Standard Deviation 0.9 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.399t-test, 2 sided
Secondary
Kinesiographic Parameters -- (2.c) Rest Position, Left-right Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (2.c) Rest Position, Left-right Axis | 0.5 mm | Standard Deviation 0.5 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (2.c) Rest Position, Left-right Axis | 0.4 mm | Standard Deviation 0.3 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.55t-test, 2 sided
Secondary
Kinesiographic Parameters -- (3.a) Mandibular Chewing Movement, Vertical Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (3.a) Mandibular Chewing Movement, Vertical Axis | 12.0 mm | Standard Deviation 2.7 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (3.a) Mandibular Chewing Movement, Vertical Axis | 12.1 mm | Standard Deviation 2.7 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.609t-test, 2 sided
Secondary
Kinesiographic Parameters -- (3.b) Mandibular Chewing Movement, Anteroposterior Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (3.b) Mandibular Chewing Movement, Anteroposterior Axis | 4.2 mm | Standard Deviation 2.1 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (3.b) Mandibular Chewing Movement, Anteroposterior Axis | 4.3 mm | Standard Deviation 2 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.6t-test, 2 sided
Secondary
Kinesiographic Parameters -- (3.c) Mandibular Chewing Movement, Left-right Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (3.c) Mandibular Chewing Movement, Left-right Axis | 1.2 mm | Standard Deviation 2.1 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (3.c) Mandibular Chewing Movement, Left-right Axis | 1.3 mm | Standard Deviation 1.4 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.611t-test, 2 sided
Secondary
Kinesiographic Parameters -- (4.a) Upper Denture Base Movement, Vertical Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (4.a) Upper Denture Base Movement, Vertical Axis | -0.5 mm | Standard Deviation 0.4 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (4.a) Upper Denture Base Movement, Vertical Axis | -0.6 mm | Standard Deviation 0.3 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.044t-test, 2 sided
Secondary
Kinesiographic Parameters -- (4.b) Upper Denture Base Movement, Anteroposterior Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (4.b) Upper Denture Base Movement, Anteroposterior Axis | -0.4 mm | Standard Deviation 0.7 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (4.b) Upper Denture Base Movement, Anteroposterior Axis | -0.4 mm | Standard Deviation 0.4 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.677t-test, 2 sided
Secondary
Kinesiographic Parameters -- (4.c) Upper Denture Base Movement, Left-right Axis
Mandibular physiologic movements and the pattern of maxillary denture movement during chewing, as recorded by a kinesiograph (K6-I Diagnostic System, Myotronics research Inc., Seatle, WA). Specific measures involved: (1) Mouth opening; (2) Movement of the mandible from rest position to maximal occlusion (tooth clenching position); (3) Movement of the mandible during chewing; and (4) Movement of the upper denture base during chewing. Data from each measure was not combined into new variables, and collected in a single time point after each intervention. All measures were taken according to the vertical, anteroposterior and left-right axes separately.
Time frame: 30 days
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Canine Guidance | Kinesiographic Parameters -- (4.c) Upper Denture Base Movement, Left-right Axis | -0.1 mm | Standard Deviation 0.5 |
| Bilateral Balanced Occlusion | Kinesiographic Parameters -- (4.c) Upper Denture Base Movement, Left-right Axis | -0.1 mm | Standard Deviation 0.3 |
Comparison: For the kinesiographic assessment, the Kolmogorov-Smirnov test was used to evaluate whether the variables had normal distribution, which was positive in the majority of cases. A comparison between the values obtained for both groups was performed by means of the paired sample t-test.p-value: 0.885t-test, 2 sided