Jaw, Edentulous, Partially
Conditions
Keywords
overdenture, nanocomposite, Amalgam, Survival, Wear
Brief summary
Methods: 28 patients with bilateral remaining first premolar in the maxillary or mandibular arch were enrolled in the study. Dome shaped preparations of the abutments were performed. The amalgam and composite restorations were randomly assigned to either the right or left remaining premolar; then conventional steps of overdenture fabrication and insertion were accomplished. Patients were followed up for 3 years.
Detailed description
For all cases, root planning and supra- and subgingival scaling were carried out utilizing an ultrasonic scaler. For all cases, all teeth were cleaned, shaped, and obturated during the patients' first visit. Local anaesthesia was achieved by local infiltration. After anaesthesia, an endodontic access cavity was established. Canals were prepared using the crowndown technique. The ideal working length was determined using an electronic apex locator and periapical radiographs. The canals were cleaned and shaped. The final instrumentation size was determined as three sizes larger than the first file binding at the working length. Master apical files ranged from #25 to #50, depending on both root anatomy and initial diameter of the root canal.Irrigation was always performed with 5.25% NaOCl solution. Obturation using gutta-percha. The master gutta-percha cone was coated with AH Plus, obturation was carried out utilizing the lateral compaction technique. Afterwards, selective etching of enamel for 30 seconds then rinsing and dryness were done followed by application of universal bonding agent with agitation action which was then light cured for 20 seconds. It was then followed by core buildup with light cured Nano-filled composite body.. As for the amalgam, high-copper non-gamma 2 spherical and lathe cut amalgam was used. For all patients, fabrication of new dentures was employed. Data were statistically described in terms of mean, standard deviation (SD), 95% CI, median and range. Data were tested for the normal assumption using Kolmogorov Smirnov test. Comparison between the study groups was done using Student t test for independent samples. Two-sided p values less than 0.05 was considered statistically significant. IBM SPSS. Survival analysis was done using Kaplan Maier statistics
Interventions
OTHERamalgam restoration
An abutment tooth is restored on a side by amalgam plug
OTHERnano-composite
An abutment tooth is restored on a side by nano-composite
Sponsors
Delta University for Science and Technology
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
40 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* Presented with partially edentulous maxillary and mandibular arches particularly with bilaterally remaining any of these teeth ; #33 #34 #35 #43 #44 #45 #13 # 14#15 #23 # 24 #25 * Good periodontal support and grade I mobility. * They were medically free.
Exclusion criteria
* Medically compromised * Grade II and grade III mobility
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Wear depth | 36 months | For each patient, a scan of the abutments was performed using intra-oral scanner in the day of overdenture insertion and another scan was performed after 36m follow up periods and then both scans are compared |
| Survival of the restoration | 36 months | Restoration survival was assessed according to the criteria approved by the FDI World Dental Federation (FDI) Scientific Committee in 2007 and the General Assembly in 2008 as criteria specifically developed for use in clinical trials. |
Countries
Egypt
Outcome results
None listed