This brief review discusses the role of occlusal interferences on the development and progression of temporomandibular dysfunction (TMD) and postural disorders. The eligible literature is described and critically presented to demonstrate that occlusal interferences are an important factor in the risk of TMD. Several studies have demonstrated through their findings that the use of occlusal adjustments, whether or not associated with restorative procedures, might avoid the development of articular problems in vulnerable patients. The occlusal interferences caused by restorative procedures or orthodontic treatment can cause TMDs in susceptible patients, and occlusal adjustments can be an alternative in the treatment of these TMDs.
Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea.
Background: This case report details a true hemifacial hyperplasia with temporomandibular joint ankylosis case managed through a multidisciplinary approach involving department of oral and maxillofacial surgery, orthodontics, and prosthodontics.
Case Presentation: A 42-year-old female patient presented with a chief complaint of limited mouth opening. Clinically, the patient exhibited severe facial asymmetry due to hyperplasia of the left facial region.
Advanced Graduate Prosthodontics, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA.
Purpose: Optical tracking devices (OTDs) hold promise for enhancing patient-centered prostheses, but their efficacy remains underexplored. This clinical study aimed to comprehensively evaluate differences in static and dynamic occlusions among occlusal appliances fabricated using optical tracking, conventional tracking, and average articulator values (AAVs), providing insights into their efficacy in clinical and research-based practices.
Materials And Methods: Twelve dentate participants aged over 25 years, with Angle Class I and II occlusal relationships, were enrolled.
The study focuses on the difficulties of designing prosthetic occlusal surfaces that accurately reflect a patient's jaw movements, highlighting the need for precision in avoiding occlusal interferences during lateral excursions.
It aimed to evaluate the effectiveness of digitally replicating mandibular movements to identify and correct these interferences in CAD-CAM zirconia crowns through two different adjustment methods.
Results showed that crowns adjusted using only buccal records (Group I) had higher lateral pressure measurements compared to those adjusted with both buccal and lateral records (Group II), suggesting that the latter may lead to better occlusion outcomes.
Postgraduate Program, Universidad Iberoamericana, Santo Domingo, Dominican Republic; Private Practice of Orthodontics in Santo Domingo, Dominican Republic; franciscomartino@ gmail.com.
Department of Morphology, Graduate Program in Dental Sciences, Federal University of Espírito Santo, Marechal Campos Avenue, 1468, Maruípe, Vitória, ES ZIP CODE 29043, Brazil. Electronic address:
Objective: The purpose of this study was to investigate morphological alterations and tissue inhibitor of metalloproteinase-1 expression in the articular cartilage of the mandible under conditions of experimentally induced malocclusion.
Design: Twenty-four 8-week-old female Wistar rats were used and divided into control and experimental groups with two different treatment periods (2 and 4 weeks). Sagittal malocclusions were orthodontically created, causing mesial movement of the first molars and distalization of the third molars unilaterally and on opposite sides of the arches.
