Active clinical trials for "Mandibular Nerve Injuries"

Sagittal split osteotomy (SSO) is a common operation done to move the mandible to correct dentofacial deformities and obstructive sleep apnea (OSA). Inferior alveolar nerve (IAN) injury and associated paresthesia is a well-known negative outcome following SSO, causing temporary or sometimes, permanent numbness in the chin and/or lip. There are limited methods to decrease the occurrence and duration of neurosensory dysfunction. Recent research has shown that platelet-rich fibrin (PRF) aids neurosensory recovery after SSO. Another method to minimize nerve injury is proximal segment grooving (PSG) to create space for the nerve to rest. This grooving method has never been formerly reported. The purpose of this study is to answer the following question: Among patients undergoing bilateral sagittal split osteotomy (BSSO) for dentofacial deformity or OSA, do those who receive PRF with or without PSG, compared to those who do not, have shorter times to functional sensory recovery (FSR) of the IAN? The null hypothesis is that there is no difference among 4 treatment groups and neurosensory outcomes. The specific aims of this proposal are to 1) enroll and randomize subjects who will undergo BSSO for correction of dentofacial deformity or OSA into 4 different treatment groups (PSG with PRF, PSG alone, PRF alone, neither PSG or PRF), 2) measure objective and subjective post-operative nerve function at fixed intervals post-operatively for up to 1 year, 3) compare differences in neurosensory outcomes among treatment groups, and 4) identify other variables that might be associated with differences in neurosensory outcomes.

The purpose of this study is to evaluate the efficacy and cost-effectiveness of Cone Beam Computed Tomography (CBCT) compared to panoramic radiography prior to removal of third molars in reducing patient's morbidity. Adults having a close relationship between the mandibular canal and one or both lower third molars, as diagnosed from digital panoramic radiographs will be recruited for this randomised controlled trial. In one trial arm, patients will receive the standard digital panoramic radiograph prior to third molar surgery. In the second arm, subjects will undergo an additional Cone Beam Computed Tomography (CBCT) prior to third molar surgery. All patients require a postoperative visit one week after surgery to assess the outcome.

The study included 24 patients with written and verbal consent Results with close proximity to IAN diagnosed based on radiographs and evaluation on the criteria of Howe, and Poyton were selected and divided into two groups by lottery method into coronectomy and coronectomy with root canal treatment following coronectomy groups. Patients were re-evaluated on three weeks for complications and three months follow-ups for radiographic evaluations of root-fragment migration

Evaluation Of Cross Mental Nerve Transfer In Restoration Of Chin &Lip Sensation Post Inferior Alveolar Nerve Injury

The aim of this prospective study is to analyze the postoperative paresthesias experienced in patients who undergo bilateral sagittal split osteotomies (BSSO) using an ultrasonic saw, versus a reciprocating saw. Patients included in the study are ages 15-45 scheduled to undergo BSSO surgery at the University of California, San Francisco. One side of the patient's mandible will be instrumented with either the Stryker Sonopet ultrasonic saw or traditional reciprocating saw, while the other side will receive the remaining intervention (determined via randomization on the day of surgery). Patient paresthesias will then be analyzed on each side for 3 months postoperatively (at postoperative days: 1, 7, 14, 28, and 84). Sensory examinations will be carried out by blinded examiners using von Frey hairs and two point discrimination testing. Patients will also subjectively rate their sensation on each side. The results will then be analyzed to determine if patient paresthesias, including the severity and duration, differed depending on which instrument was used, the ultrasonic or reciprocating saw.

Objective The present study aimed to evaluate which factors were statistically associated with a greater probability of inferior alveolar nerve (IAN) damage during lower third molar surgery. Study Design A prospective observational study was performed at the Oral Surgery Unit of the Umberto I Hospital on 92 patients which underwent surgical extraction of a lower third molar, that was radiographically overlapped to the mandibular canal. All surgeries were performed by the same expert surgeon. A principal component analysis and the exact two-tailed Fisher test were used.