TY - JOUR
T1 - Objective validity of an implant-retained overdenture with a ball attachment system after marginal mandibulectomy
AU - Murase, Ryuichi
AU - Ishikawa, Akiko
AU - Sumida, Tomoki
AU - Shinohara, Kozue
AU - Nakashiro, Koh Ichi
AU - Hamakawa, Hiroyuki
N1 - Publisher Copyright:
© 2015 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
PY - 2016
Y1 - 2016
N2 - Implant-retained overdentures are known to improve oral function, but the clinical impact on patients who have had mandibular resections is still debatable. We have treated 16 patients who had such resections for oral cancer and consequent loss of the alveolar ridge, with overdentures supported by osseointegrated implants and ball attachments. To quantify their functional improvement, we evaluated their maximum bite force and masticatory performance. Their function improved significantly, (from 77.5 N - 365 N, 371% increase in maximum bite force, p<0.001) and masticatory performance increased (from 2.5 - 7.7, 208%, p<0.0001) after the overdentures had been inserted. While individual changes in maximum bite force showed no significant correlation, those in masticatory performance correlated significantly, which suggests that the subjects with poor masticatory function are likely to benefit from retention of an implant. These results indicate that implant-retained overdentures are an effective way to rehabilitate patients after marginal mandibular resection.
AB - Implant-retained overdentures are known to improve oral function, but the clinical impact on patients who have had mandibular resections is still debatable. We have treated 16 patients who had such resections for oral cancer and consequent loss of the alveolar ridge, with overdentures supported by osseointegrated implants and ball attachments. To quantify their functional improvement, we evaluated their maximum bite force and masticatory performance. Their function improved significantly, (from 77.5 N - 365 N, 371% increase in maximum bite force, p<0.001) and masticatory performance increased (from 2.5 - 7.7, 208%, p<0.0001) after the overdentures had been inserted. While individual changes in maximum bite force showed no significant correlation, those in masticatory performance correlated significantly, which suggests that the subjects with poor masticatory function are likely to benefit from retention of an implant. These results indicate that implant-retained overdentures are an effective way to rehabilitate patients after marginal mandibular resection.
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U2 - 10.1016/j.bjoms.2015.11.017
DO - 10.1016/j.bjoms.2015.11.017
M3 - Article
C2 - 26705861
AN - SCOPUS:84954285962
VL - 54
SP - e21-e25
JO - British Journal of Oral and Maxillofacial Surgery
JF - British Journal of Oral and Maxillofacial Surgery
SN - 0266-4356
IS - 2
ER -