View clinical trials related to Mandibular Hypoplasia.
Filter by: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.
The aim of this study is to compare to different protocols to treat Class II malocclusion in growing subjects using the twin block appliance
difficult problem in the paediatric age group because of their small mouth opening and un-cooperativeness.Currently used methods of sedation for fibreoptic intubation such as benzodiazepines, propofol or opioids may cause respiratory depression, especially when used in high doses
The goal of this study is to evaluate whether the use of a bone graft substitute at the osteotomy site will result in better stability and diminish early relapse after mandibular lengthening surgery. The study focuses on the evaluation of the following hypothesis: The use of bone graft substitute at the osteotomy site has an influence on: - The 3-dimensional stability of the osteotomy site - Early relapse based in the plasticity of the site
In this current study a comparison between 3 positional screws versus the adjustable plating system in conjunction with 2 positional screws. The patients will be selected to have retrognathic mandible requiring advancement. Hypothetically the advantage of the adjustable plating system will be compared with the three positional screws. In theory, the investigators will be using the inherent advantage of the intraoperative flexibility of the adjustable plating system in verifying the position of the proximal segment (condylar segment), hence eliminating the immediate postoperative relapse that is reported with using three positional screws. This will be evaluated both clinically and cephalometrically.
Thirty teeth twelve patients, two female and a male, who had persistent periradicular lesions were selected to participate in this study. The lesions were diagnosed with cone-beam computed tomography (cone-beam CT; Model i-Cat 17-19, Imaging Sciences International LLC).In patients with two teeth to be treated, a tooth was retroobturado with PBEA cement, (experiment) and another tooth was retroobturado with MTA cement (control). There was significance for the two cements on the repair of wounds. Key words: Apicoectomy; Oral Surgery; Biocompatible Materials; Dental Cements; Translational Medical Research
This is a single center study of the safety and efficacy of Juvedérm Voluma for the treatment of hypognathism. Each qualified subject will undergo treatment with Juvedérm Voluma in the anterior and lateral chin for volume correction. Prior to treatment, the principal investigator will evaluate the severity of chin recession using a 90 degree image and a goniometer to measure the angle from the glabella to the chin. Subjects will be eligible for injection if the angle measures between 145 - 160 degrees. Facial digital photography will be captured prior to treatment and at each subsequent visit. The subject will complete a safety and injection site response (ISR) diary beginning on the evening of treatment. The subject will return at Day 3 and Day 14 after initial treatment, at which time the subject will undergo photography and the investigator will rate treatment improvement (GAIS). An independent image analysis technician will assess the degree of correction. The investigator will evaluate the treatment area for any adverse events (AEs). The subject will return 30 days after initial treatment, and the principal investigator will determine if a touch-up treatment is warranted. If deemed necessary, a touch-up treatment may be administered. Facial digital photography will be captured prior to treatment and following treatment. The subject will return 3 days after the touch-up to undergo digital photography and for the principal investigator to assess safety/improvement. After initial or touch-up treatment, whichever is last, routine follow-up visits for safety and effectiveness will occur at 1 (30 days), 2, 4, 6, 9 (telephone call only) and 12 months. At all follow-up visits, facial digital photography will be captured and the investigator will rate treatment improvement (GAIS).. At screening and at Months 1, 2, 4, 6 and month 12 subjects will complete the satisfaction of face overall module of the FACE-Q questionnaire. The goal of this study will be to assess the feasibility of Voluma XC for the treatment of hypoplastic chins