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Crestal Bone Changes Around Implants With Reduced Abutment Diameter Placed Non-Submerged and at Subcrestal Positions: A 1-Year Radiographic Evaluation

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Crestal Bone Changes Around Implants With Reduced Abutment Diameter Placed Non-Submerged and at Subcrestal Positions: A 1-Year Radiographic Evaluation

Auteurs : Ryan Donovan [États-Unis] ; Alan Fetner [États-Unis] ; Theofilos Koutouzis [États-Unis] ; Tord Lundgren [États-Unis]

Source :

Journal of periodontology : (1970) [ 0022-3492 ] ; 2010.

RBID : Pascal:10-0166364

Descripteurs français

Pascal (Inist)
- Ostéopénie, Radiographie, Radiologie, Os alvéolaire, Implanté, Diamètre, Position, Evaluation, Dent, Fuite, Ostéointégration, Titane, Dentisterie, Traitement, Implant dentaire.
Wicri :
- topic : Titane.

English descriptors

KwdEn :
- Alveolar bone, Dental implant, Dentistry, Diameter, Evaluation, Implanted, Leak, Osteointegration, Osteopenia, Position, Radiography, Radiology, Titanium, Tooth, Treatment.

Abstract

Background: There is limited information about two-part implants placed in subcrestal positions. The aim of this study is to retrospectively evaluate the 1-year outcome of implants placed non-submerged and in a subcrestal position. Methods: Records of 50 consecutive partially edentulous patients restored with dental implants were reviewed. For each implant, radiographs from the surgical appointment were compared to those from the 1-year follow-up visit and evaluated regarding: 1) the degree of subcrestal positioning of the implant, 2) changes of marginal hard tissue height over time, and 3) if the marginal hard tissue could be detected on the implant platform at the follow-up visit. Results: The overall survival rate from baseline to the last recorded follow-up visit was 100%. At the surgery, the implants were placed, on average, 1.37 mm (mesial) and 1.28 mm (distal) subcrestally. The mean marginal loss of hard tissues was 0.11 ± 0.30 mm. There were no statistical significant differences regarding the loss of marginal hard tissues between mesial and distal surfaces or the maxilla versus the mandible. There was no statistical significant correlation regarding the degree of subcrestal implant position and loss of marginal mineralized hard tissue (r = 0.15; P >0.05). The mineralized hard tissue on the implant shoulder was found in 69% of the implants at the 1-year follow-up visit. Conclusions: The present study reported a minimal loss of mineralized hard tissue around dental implants placed non-submerged and at subcrestal positions. In addition, these implants had hard tissue healing that extended onto the implant shoulders on most of the observed implants.

Affiliations:

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Le document en format XML

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<term>Diameter</term>
<term>Evaluation</term>
<term>Implanted</term>
<term>Leak</term>
<term>Osteointegration</term>
<term>Osteopenia</term>
<term>Position</term>
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<term>Diamètre</term>
<term>Position</term>
<term>Evaluation</term>
<term>Dent</term>
<term>Fuite</term>
<term>Ostéointégration</term>
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<front><div type="abstract" xml:lang="en">Background: There is limited information about two-part implants placed in subcrestal positions. The aim of this study is to retrospectively evaluate the 1-year outcome of implants placed non-submerged and in a subcrestal position. Methods: Records of 50 consecutive partially edentulous patients restored with dental implants were reviewed. For each implant, radiographs from the surgical appointment were compared to those from the 1-year follow-up visit and evaluated regarding: 1) the degree of subcrestal positioning of the implant, 2) changes of marginal hard tissue height over time, and 3) if the marginal hard tissue could be detected on the implant platform at the follow-up visit. Results: The overall survival rate from baseline to the last recorded follow-up visit was 100%. At the surgery, the implants were placed, on average, 1.37 mm (mesial) and 1.28 mm (distal) subcrestally. The mean marginal loss of hard tissues was 0.11 ± 0.30 mm. There were no statistical significant differences regarding the loss of marginal hard tissues between mesial and distal surfaces or the maxilla versus the mandible. There was no statistical significant correlation regarding the degree of subcrestal implant position and loss of marginal mineralized hard tissue (r = 0.15; P >0.05). The mineralized hard tissue on the implant shoulder was found in 69% of the implants at the 1-year follow-up visit. Conclusions: The present study reported a minimal loss of mineralized hard tissue around dental implants placed non-submerged and at subcrestal positions. In addition, these implants had hard tissue healing that extended onto the implant shoulders on most of the observed implants.</div>
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Crestal Bone Changes Around Implants With Reduced Abutment Diameter Placed Non-Submerged and at Subcrestal Positions: A 1-Year Radiographic Evaluation

Crestal Bone Changes Around Implants With Reduced Abutment Diameter Placed Non-Submerged and at Subcrestal Positions: A 1-Year Radiographic Evaluation

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri