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Evaluation of the effect of the lateralized inferior alveolar nerve isolation and bone grafting on the nerve function and implant stability. (Randomized Clinical Trial)
Author(s) -
Garoushi Ibrahim H.,
Elbeialy Ramy R.,
Gibaly Amr,
Atef Mohammed
Publication year - 2021
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/cid.13003
Subject(s) - implant stability quotient , medicine , inferior alveolar nerve , implant , resonance frequency analysis , dentistry , dental implant , initial stability , radiography , dental alveolus , bone grafting , surgery , molar
Abstract Background The inferior alveolar nerve lateralization (IANL), although allows for an implant full‐length mandibular height engagement, coincides with depleting the buccal bone support and sensory deficits. Purpose This study aims to assess whether interposing a bone graft coupled with securing a collagen membrane separation between the inferior alveolar nerve (IAN) and the underlying dental implants would preserve the nerve function, enhance the implant stability, and minimize the radiographic marginal bone loss. Material and methods Eighteen patients with 30 atrophic mandibular edentulous ridges were subjected to IANL after being randomly assigned to two treatment modalities which consisted of 15 patients each. The (control group) utilized conventional IANL in direct contact with 20 implants. The (test group) implemented the IAN collagen‐membrane wrapping and interposing bone graft to overlay 23 implants. The neural function, the radiographic marginal bone loss, and the implant stability quotient were assessed and compared 6 months postoperatively. Results All the patients regained their full neurosensory function after 6 months, with statistically nonsignificant differences between both groups throughout the follow‐up period. The mean marginal bone loss in the test group was (0.42 ± 0.09) mm versus (0.38 ± 0.14) mm for the control group, which was statistically similar ( P = 0.401). The 6‐month postoperative mean implant stability quotient values of the test group recorded (74.73 ± 2.68) versus (74.73 ± 1.79) for the control group, which was statistically nonsignificant with a value of P = 0.626. Conclusion The interposed bone graft, coupled with the collagen membrane isolation, neither subsided the neural disturbances nor enhanced the secondary implant stability and marginal bone loss.