Evaluation of Using Different Screwed Abutment Height

Status Active, not recruiting

Clinical Trial Summary

A prospective randomized controlled clinical trial will be conducted. Study groups will be assigned as described above. The patients will be randomly divided into two groups in order to study the influence of prosthetic screw abutment in marginal bone loss (MBL) around Bone Level Tapered implants (BLT® Roxolid® SLActive® guided implants, Straumann Dental Implant System, Institut Straumann AG, Basel, Switzerland).

Clinical Trial Description

48 patients will be selected with partial edentulism in the maxilla or mandible, requiring two dental implants in the posterior areas (molars and premolars). Each patient will be randomly allocated in one of the two groups: test group (n=36) or control group (n=12) and all the implants will be placed by residents of the International Master in Oral Surgery and Master in Periodontics of the same University. Study groups Group 1: Two stage approach (cover screw in first surgery and healing abutment in second surgery) (12 patients) Group 2: One stage approach (healing cap over trans-epithelial abutments) (36 patients).Two subgroups according to different trans-epithelial height abutment: - Subgroup 2.1: Screw-retained abutment of 1 mm height (18 patients) - Subgroup 2.2: Screw-retained abutment of 2.5 mm height (18 patients) Clinical Parameters and Outcomes - Three-dimensional volumetric changes in hard and soft tissues (Cone-beam computed tomography superposed with digital cast models). - Marginal bone level (MBL) change: Standardized intraoral periapical x-rays will be taken on the day of surgery, 4, 6, 12, 24 and 36 months following surgery. - Probing depth, bleeding on probing and keratinized mucosa width will be measured in the follow-up visits in 3 different points in buccal (Mesial, center and distal). - VAS Scale: The visual analog scale or visual analog scale (VAS). ;

Study Design

Related Conditions & MeSH terms

Bone Loss

Clinical Trial Details

NCT number	NCT06017115
Study type	Interventional
Source	Universitat Internacional de Catalunya
Contact
Status	Active, not recruiting
Phase	N/A
Start date	July 1, 2017
Completion date	July 30, 2024

View Details

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