Marginal bone level and survival of short and standard-length implants after 3 years: An Open Multi-Center Randomized Controlled Clinical Trial

Homayoun H Zadeh; Felix Guljé; Paul J Palmer; Ingemar Abrahamsson; Stephen Chen; Ramin Mahallati; Clark M Stanford

doi:10.1111/clr.13341

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Marginal bone level and survival of short and standard-length implants after 3 years: An Open Multi-Center Randomized Controlled Clinical Trial

Journal article

Peer reviewed

Marginal bone level and survival of short and standard-length implants after 3 years: An Open Multi-Center Randomized Controlled Clinical Trial

Homayoun H Zadeh, Felix Guljé, Paul J Palmer, Ingemar Abrahamsson, Stephen Chen, Ramin Mahallati and Clark M Stanford

Clinical oral implants research, Vol.29(8), pp.894-906

08/2018

DOI: 10.1111/clr.13341

PMID: 30003598

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Abstract

The present multi-center randomized controlled clinical trial sought to compare the marginal bone level (MBL) changes and survival of 6- and 11-mm implants. Ninety-five patients receiving a total of 209 dental implants were enrolled. Subjects were randomly allocated to two cohorts: test (4.0 × 6 mm; N = 108) or control (4.0 × 11 mm; N = 101) implant groups. To be randomized, all edentulous sites were anatomically qualified to receive 11 mm implant. Two to three implants were placed in maxillary or mandibular posterior regions and loaded with splinted provisional restoration after 6 weeks and definitive restoration 6 months thereafter. Test and control implants were followed by clinical and radiographic examinations on an annual basis up to 3 years. Radiographic assessment of MBL 3 years after loading revealed the bone to be located at 0.27 mm (±0.40) and 0.44 mm (±0.74) apical to the implant platform in the test and control groups, respectively. During the 3 years of follow-up since loading, 0.04 mm (±0.43) MBL gain and 0.02 mm (±0.76) of MBL loss were observed in the 6-mm (test) and 11-mm (control) groups, respectively. The MBL's for test and control were significantly different (p = 0.000) in favor of short implants. The cumulative survival rates from placement after 3 years were 96% and 99% for the 6- and 11-mm implants, respectively, with no statistical significance. Reconstruction of partially edentulous posterior maxilla or mandible with 6- or 11-mm implants led to stable marginal bone level and high implant survival rate after 3 years.

Adult

Alveolar Bone Loss - diagnostic imaging

Alveolar Bone Loss - pathology

Alveolar Ridge Augmentation

Dental Implantation, Endosseous - instrumentation

Dental Implants - adverse effects

Dental Prosthesis Design

Female

Follow-Up Studies

Humans

Jaw, Edentulous, Partially - diagnostic imaging

Jaw, Edentulous, Partially - pathology

Jaw, Edentulous, Partially - surgery

Male

Middle Aged

Radiography, Dental

Details

Title: Subtitle: Marginal bone level and survival of short and standard-length implants after 3 years: An Open Multi-Center Randomized Controlled Clinical Trial
Creators: Homayoun H Zadeh - University of Southern California
Felix Guljé - Private practice de Mondhoek, Apeldoorn, The Netherlands.
Paul J Palmer - King's College Dental Institute, London, UK
Ingemar Abrahamsson - University of Gothenburg
Stephen Chen - The University of Melbourne
Ramin Mahallati - University of Southern California
Clark M Stanford - University of Illinois Chicago
Resource Type: Journal article
Publication Details: Clinical oral implants research, Vol.29(8), pp.894-906
DOI: 10.1111/clr.13341
PMID: 30003598
NLM abbreviation: Clin Oral Implants Res
ISSN: 0905-7161
eISSN: 1600-0501
Grant note: name: Dentsply Sirona Implants
Language: English
Date published: 08/2018
Academic Unit: Roy J. Carver Department of Biomedical Engineering; Dentistry Administration; Prosthodontics; Orthopedics and Rehabilitation; Craniofacial Anomalies Research Center
Record Identifier: 9984367746702771

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