TY - JOUR
T1 - Effect of location on primary stability and healing of dental implants
AU - Monje, Alberto
AU - Suarez, Fernando
AU - Garaicoa, Carlos Andrés
AU - Monje, Florencio
AU - Galindo-Moreno, Pablo
AU - García-Nogales, Agustín
AU - Wang, Hom Lay
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014/2
Y1 - 2014/2
N2 - PURPOSE: To study implant primary stability and bone healing using resonance frequency analysis in different anatomical locations 4 months after placement. MATERIAL AND METHODS: Fifty-six partially edentulous patients restored by dental implants were included. Overall, 214 implants were placed without bone or soft tissue augmentation. All implants were placed with the same drilling protocol and implant insertion torque (35-40 N·cm). RESULTS: The mean implant stability quotient (ISQ) value at baseline for all the locations was 75.4 mm (95% confidence interval, 74.20-76.59 mm). Higher ISQ values were found in the mandible. A significant difference between ISQ values of each location (P < 0.001) was identified. The mean values obtained showed an increase (3.4%) in all the locations, being greater in the posterior lower and upper maxillae (3.8%), whereas for the anterior maxilla, it was the least (1.5%) 4 months after healing. This increase was statistically significant in the posterior upper and lower maxillae (P < 0.001). CONCLUSION: Higher implant stability was found in mandible compared with maxilla in both periods, immediately after insertion and 4 months later. Therefore, according to ISQ values, restoring implants immediately after insertion or after a healing period of 4 months represents safe time points.
AB - PURPOSE: To study implant primary stability and bone healing using resonance frequency analysis in different anatomical locations 4 months after placement. MATERIAL AND METHODS: Fifty-six partially edentulous patients restored by dental implants were included. Overall, 214 implants were placed without bone or soft tissue augmentation. All implants were placed with the same drilling protocol and implant insertion torque (35-40 N·cm). RESULTS: The mean implant stability quotient (ISQ) value at baseline for all the locations was 75.4 mm (95% confidence interval, 74.20-76.59 mm). Higher ISQ values were found in the mandible. A significant difference between ISQ values of each location (P < 0.001) was identified. The mean values obtained showed an increase (3.4%) in all the locations, being greater in the posterior lower and upper maxillae (3.8%), whereas for the anterior maxilla, it was the least (1.5%) 4 months after healing. This increase was statistically significant in the posterior upper and lower maxillae (P < 0.001). CONCLUSION: Higher implant stability was found in mandible compared with maxilla in both periods, immediately after insertion and 4 months later. Therefore, according to ISQ values, restoring implants immediately after insertion or after a healing period of 4 months represents safe time points.
KW - implant stability
KW - implant stability quotient
KW - osseointegration
KW - resonance frequency analysis
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U2 - 10.1097/ID.0000000000000019
DO - 10.1097/ID.0000000000000019
M3 - Article
C2 - 24384740
AN - SCOPUS:84893777549
SN - 1056-6163
VL - 23
SP - 69
EP - 73
JO - Implant dentistry
JF - Implant dentistry
IS - 1
ER -