Single tooth implants in the posterior maxilla and mandible: a prospective study on clinical performance of NobelBiocare Implants restored with screw-retained zirconia crowns; a 5-years evaluatio

Completed

• Conditions: 5-years ago the patient had a missing posterior tooth

• Registration Number: NL-OMON24338
• Lead Sponsor: niversity Medical Center Groningen

Brief Summary

Full-zirconia implant-supported restorations with angulated screw channel abutments in the posterior region; a 5-years prospective case series study

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Last Update Posted: 28 February 2024

Recruitment & Eligibility

• Status: Completed
• Sex: Not specified
• Target Recruitment: 30

Inclusion Criteria

•Patients referred to the department of Oral and Maxillofacial Surgery 5 years ago and treated with a dental implant and a screw-retained implant-supported zirconia restoration because of having a missing tooth in the posterior region. At the time of treatment:
•The patient was 18 years or older;
•The missing tooth was a premolar or molar in maxilla or mandible;
•Sufficient healthy and vital bone to insert a dental implant with a minimum length of 8 mm and at least 4.0 mm in diameter with initial stability > 45 Ncm
•The implant site was free from infection;
•Adequate oral hygiene (modified plaque index and modified sulcus bleeding index = 1);
•Sufficient mesio-distal, bucco-lingual, and interocclusal space for placement of an anatomic restoration;
•The patient was capable of understanding and giving informed consent.

Exclusion Criteria

•Medical and general contraindications for the surgical procedures;
•Presence of an active and uncontrolled periodontal disease;
•Bruxism;
•Smoking
•A history of local radiotherapy to the head and neck region.

Study & Design

• Study Type: Observational non invasive
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Change in marginal peri-implant bone level 5 years after placing the definitive restoration.

Secondary Outcome Measures

Name	Time	Method
Implant and restoration survival, peri-implant mucosa health and patients’ satisfaction using a questionnaire.