Clinical and Radiographic Evaluation of Crestal Bone Loss Around Implant With or Without Platform Switching Design

Launched by CAIRO UNIVERSITY · May 2, 2016

Keywords

ClinConnect Summary

The peri-implant bone level has been used as one of the criteria to assess the success of dental implants, Platform switching (PLS) for maintaining peri-implant bone levels has gained popularity among implant manufacturers over the last few years. However, the assumption that the inward shifting of the implant- abutment junction may preserve crestal bone was primarily based on serendipitous finding rather than scientific evidence.

It is known that saucerization around an implant occurs following abutment connection using a submerged implant with a butt joint (a two-stage approach), such as...

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • 1. Patients older than18 yrs.
• • 2. Patients with missing teeth in the posterior maxilla (from the 1st premolar to 2nd Molar) bilaterally in need for fixed implant-supported prosthesis.
• • 3. Full mouth plaque score and full mouth bleeding score ˂25 %
• • 4. Patients with adequate bone quality and quantity at the implant site
• • 5. Patients with systematic healthy.
• • 6. Non-smokers or those smoking ˂10 cigarettes/day
• • 7. Patients who were cooperative, motivated, and hygiene conscious and willing to return for multiple follow-up appointments (up to 9 months after prosthetic loading).
• Exclusion Criteria:
• • I) General:-
• • 1. Patients with any systemic condition that may contraindicate implant therapy.
• • 2. Patients with a history of Bisphosphonate therapy
• • 3. Pregnant and lactating patients
• • 4. Alcohol and drug abuse
• • 5. Parafunctional habits that produce overload on the implant such as bruxism and clenching.
• • II) Local:-
• • 1. Local inflammation or infection at implant site.
• • 2. Untreated periodontitis
• • 3. Local irradiation therapy
• • 4. History of implant failure as well as unhealed extraction socket
• • 5. Inadequate keratinized gingiva or thin gingival biotype.
• • 6. Inadequate bone height or width.
• • 7. Insufficient vertical inter-arch space, upon centric occlusion, to accommodate the available restorative components.