Clinical Evaluation of RTX Locator Attachments for Implant-supported Mandibular Complete Overdenture Using Two Loading Protocols
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Vertical Alveolar Bone Loss
- Sponsor
- Mansoura University
- Enrollment
- 30
- Locations
- 1
- Primary Endpoint
- gingival index
- Status
- Completed
- Last Updated
- 4 years ago
Overview
Brief Summary
This study was conducted to clinically and radiographically evaluate locator RTx attachments for two implant-supported mandibular overdenture using two loading protocols
Detailed Description
Thirty edentulous patients received two implants in the interformaninal region in the canine area . According to the loading protocol used for attaching mandibular overdenture, patients were randomly assigned into two equal groups. Group I (control): patients who would be delivered mandibular implant overdenture retained by two RTx locator attachments using conventional loading protocol. Group II (study): patients who would be delivered mandibular overdenture retained by two RTx locator attachments using early loading protocol. Peri-implant tissue health \[Plaque (PL) and (GI) gingival scores, pocket depth (PD), and crestal bone loss (CBL)\] were evaluated immediately after denture insertion (T0), 6 (T6), and 12 (T12) months after insertion.
Investigators
Eligibility Criteria
Inclusion Criteria
- •adequate bone quantity \[class III -V according to Cawood and Howell in the interforaminal area of the mandible to receive 2 implants (4×13 mm)
- •adequate restorative space \[12-15 mm from the mucosa of the mandibular ridge to the occlusal plane, Class I according to Ahuja and Cagna for RTX supported implant overdenture.
Exclusion Criteria
- •systemic diseases that contraindicate implant placement
- •bone metabolic diseases as diabetes mellitus
- •irradiation of the head and neck region
- •chemotherapy within the past 3 years
- •smoking habits.
Outcomes
Primary Outcomes
gingival index
Time Frame: one year
evaluation of gingival bleeding around RTX attachments using scores.0; no bleeding when a periodontal probe is passed along the mucosal margin, 1;isolated bleeding spots visible, 2; blood forms a confluent red line on the mucosal margin, 3;heavy or profuse bleeding.
pocket depth
Time Frame: one year
evaluation of pocket depth in mm around RTX attachments
plaque score
Time Frame: one year
evaluation of plaque accumulation around RTX attachments using scores.score 0; absence plaque , score 1; plaque only detected by a probe passing through the smooth marginal surface of the implant, score 2; plaque can be recognized by naked eye, and score 3; plenty of soft matter.
Marginal bone loss
Time Frame: one year
evaluations of crestal bone loss in mm around implants by digital periapical radiography