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The International Journal of Oral & Maxillofacial Implants



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Int J Oral Maxillofac Implants 17 (2002), No. 3     15. June 2002
Int J Oral Maxillofac Implants 17 (2002), No. 3  (15.06.2002)

Page 413-415

Medicolegal Aspects of Altered Sensation Following Implant Placement in the Mandible
Chaushu, Gavriel / Taicher, Shlomo / Halamish-Shani, Talia / Givol, Navot
Purpose: Altered mandibular sensation following implant surgery may result in liability claims. Therefore the authors conducted a retrospective analysis of all liability claims related to persistent altered sensation following placement of mandibular implants reported to the Medical Consultants International (MCI) Company from 1992 to 1999. Materials and Methods: Reports related to persistent altered mandibular sensation in 16 patients (12 women and 4 men) who underwent implant surgery in Israel were examined. The MCI files were retrospectively evaluated according to a structured form. The parameters studied included patient age and gender, implant location and length, imaging modality, and the time between actual damage and filing of a claim (ie, letter of demand or lawsuit). Results: The time in months between actual damage and filing of claim ranged from 0 to 60 months (mean 21.5 months). No cases were found involving transient changes in sensation. The female/male ratio was 3:1. Implant length was equal to or longer than 13 mm in 6 of 7 implants placed in the molar region. In the premolar area, nerve injury was evident in 6 of 7 cases where implants shorter than 12 mm were used. Conclusions: Transient nerve injury rarely results in legal action. Maximum effort should be devoted to accurately determining the appropriate implant length in the mandible.