Bone Loss in Jaw, Dental Implant Failed, Dental Implant Failure Nos
Conditions
Brief summary
Few if any studies have compared marginal bone loss (MBL) around implant-retaining overdentures (2 implants with locators) versus implant supported fixed hybrid prosthesis (over 4 implants) in the mandible.
Detailed description
Material and Methods: Patients of the saint Joseph university dental clinics, who have already in their records peri-apical radiographs of the implants post loading, will be divided in 2 groups depending on the prosthetic treatment that they have had for 5 years in mouth, and will be recalled for a check-up session during which the investigators will take new peri-apical X-rays by means of the parallel long-cone technique for the implants that are supporting/retaining the prosthesis. A total of minimum 50 implants placed in a minimum of 19 patients will be examined. The mean mesial and distal radiographic MBL and bone to implant contact (BIC) will be recorded by comparing the two X-rays for each implant. the investigators will also investigate the possibly related factors that may have contributed to this marginal bone loss such as the medical history, smoking habits, oral hygiene, compliance, presence of keratinized tissue and possibility of proper cleaning. Results: the investigators aim to find a statistically significant difference in the Marginal bone loss around implants assisting these two types of prosthesis and a possible correlation with some risk and modifying factors.
Interventions
RADIATIONPeri-apical radiographs on the implants
Peri-apical radiographs on the implants supporting the prosthesis
Sponsors
Saint-Joseph University
Study design
Observational model
COHORT
Time perspective
OTHER
Eligibility
Sex/Gender
ALL
Healthy volunteers
Yes
Inclusion criteria
* Patients treated with mandibular implant-retaining overdentures (2 implants) * Patients treated with mandibular implant-supported fixed hybrid prosthesis (4 implants) * Patients having in their records a post-loading peri-apical radiograph for the implants * Patients who have had their prosthesis for 5 years in mouth
Exclusion criteria
* Patients treated with mandibular implant-retaining overdentures with more or less than 2 implants * Patients treated with mandibular implant-supported fixed hybrid prosthesis with more or less than 4 implants Patients treated with any other prosthetic option on implants Patients who don't have a post-loading peri-apical radiograph in their records
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Marginal Bone Loss in mm (MBL) | 5 years | MBL in mm around implants in patients having a removable prosthesis over locators and in patients having a screw retained hybrid prosthesis |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| compliance and attendance to recall sessions | 5 years | patient attending the recall sessions or no |
| keratinized tissue hight | 5 years | measured in mm with a periodontal probe |
| framework design | 5 years | prosthetic framework fit/misfit |
| smoking status | 5 years | non smoker, smoker less than 10 cig/day, smoker more than 10 cig/day |
| health status | 5 years | diabetes yes/no ; cardiovascular disease yes/no |
| sex | 5 years | male female |
| plaque score | 5 years | using the modified plaque index (0 absence,1 detectable by a probe, 2 visible, 3 abundant) |
| age | 5 years | in years |
Countries
Lebanon
Outcome results
None listed