Publications by authors named "Payam Owtad"
Objective: This study was designed to assess the morphological and histological alterations of the condyle of rats undergoing forward mandibular repositioning via functional appliance.
Materials And Methods: Functional appliances were mounted onto the upper jaws of rats. Morphological analysis was conducted on micro-CT images of sacrificed animals.
Incident management guidelines for an ingested orthodontic object.
Int J Orthod Milwaukee
February 2014
Dental materials or components of orthodontics devices can fall into a patient's oropharynx, and be swallowed or inhaled. In this paper a short review of accidental foreign body ingestion/aspiration prevention, evaluation, and relevant incident management guidelines are presented. In addition, a case of an accidentally swallowed piece of archwire during a chair side procedure is reported.
View Article and Find Full Text PDFObjective: To evaluate cellular hypertrophic activities in the mandibular condylar cartilage (MCC) and the glenoid fossa (GF) during mandibular advancement in the temporomandibular joint (TMJ) of Sprague-Dawley rats, as evidenced by fibroblast growth factor 8 (FGF8).
Methods And Materials: Fifty-five female 24-day-old Sprague-Dawley rats were randomly divided into four experimental and control groups, with a mandibular advancement appliance on the experimental rats' lower incisors. The rats were euthanized on days 3, 14, 21, and 30 of the study, and their TMJ was prepared for a immunohistochemical staining procedure to detect FGF8.
Objectives: To histologically and immunohistochemically assess the pattern of expression of bone morphogenic proteins 2 and 4 (BMP2/4) and proliferating cell nuclear antigen (PCNA) in response to bite jumping appliances in the condylar cartilage and the glenoid fossa.
Materials And Methods: Fifty-five 4-week-old female Sprague-Dawley rats were randomly divided into four experimental and four control groups. Bite-jumping appliances were fitted to the experimental animals.