Platform switch versus platform match in the posterior mandible - 1-year results of a multicentre randomized clinical trial

Objective The purpose of this ongoing randomized study was to assess differences in bone level changes and success rates using implants supporting single crowns in the posterior mandible either with platform matched or platform switched abutments. Material and Methods Patients aged 18 and above, mis...

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Bibliographic Details
Published in:Journal of clinical periodontology 2014-05, Vol.41 (5), p.521-529
Main Authors: Guerra, Fernando, Wagner, Wilfried, Wiltfang, Jörg, Rocha, Salomão, Moergel, Maximilian, Behrens, Eleonore, Nicolau, Pedro
Format: Article
Language:English
Subjects:
Alveolar Process - diagnostic imaging
Bone Density - physiology
Bone Remodeling - physiology
Cementation - methods
Clinical outcomes
crestal bone preservation
Crowns
Dental Implant-Abutment Design
Dental Implants, Single-Tooth
Dental Plaque Index
Dental Prosthesis, Implant-Supported
Dental Restoration Failure
Dentistry
Female
Follow-Up Studies
Humans
implant success
Implant Therapy
Male
Mandible - diagnostic imaging
Mandible - pathology
Mandible - surgery
Middle Aged
Periodontal Index
Periodontal Pocket - classification
platform matching
platform switching
Prospective Studies
Radiography, Bitewing
randomized clinical trial
Survival Analysis
Torque
Transplants & implants
Treatment Outcome
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Summary:Objective The purpose of this ongoing randomized study was to assess differences in bone level changes and success rates using implants supporting single crowns in the posterior mandible either with platform matched or platform switched abutments. Material and Methods Patients aged 18 and above, missing at least two teeth in the posterior mandible and with a natural tooth mesial to the most proximal implant site were enrolled. Randomization followed implant placement. Definitive restorations were placed after a minimum transgingival healing period of 8 weeks. Changes in crestal bone level from surgery and loading (baseline) to 12‐month post‐loading were radiographically measured. Implant survival and success were determined. Results Sixty‐eight patients received 74 implants in the platform switching group and 72 in the other one. The difference of mean marginal bone level change from surgery to 12 months was significant between groups (p 
ISSN:0303-6979
1600-051X
DOI:10.1111/jcpe.12244