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What is Factors that Promote Long Disclusion Time

Handbook of Research on Clinical Applications of Computerized Occlusal Analysis in Dental Medicine
Prolonged disclusion time and occlusal surface excursive friction are present within an occlusal scheme resultant from many contributory factors. These eight factors predispose the occlusion to excursive movement friction: The Angle’s Classification, an anterior Open Occlusion, the presence of occluding third molars, poor vertical tooth orientation, a lack of canine contact in MIP, shallow anterior guidance surfaces, an exaggerated Curve of Spee, tipped-up mesiodistal molar orientation, and lingual-to-lingual working side excursive contacts.
Published in Chapter:
Employing the T-Scan/BioEMG III Synchronized Technologies to Diagnose and Treat Chronic Occluso-Muscle Disorder
Robert B. Kerstein, DMD (Tufts University School of Dental Medicine, USA & Private Dental Practice Limited to Prosthodontics, USA)
DOI: 10.4018/978-1-5225-9254-9.ch007
Abstract
This chapter discusses chronic occluso-muscle disorder, which is a myogenous subset of temporomandibular disorder (TMD) symptoms resultant from occlusally activated muscle hyperactivity. It also describes the computer-guided occluso-muscle disorder treatment known as disclusion time reduction (DTR), that studies repeatedly show reduces many common muscular temporomandibular disorder symptoms. T-Scan-based research since 1991 has determined that a significant etiologic component of occluso-muscle disorder is prolonged (in time) occlusal surface friction shared between opposing posterior teeth during mandibular excursions, that occurs in both normal chewing function and during parafunction. This friction results in prolonged compressions of the periodontal ligament (PDL) fibers of the involved teeth, which when in excursive opposing occlusal contact, also experience pulpal flexure that leads to pulpal neural activation, which together with the periodontal ligament compressions, trigger excess muscle contractions within the masticatory muscles. It is this unique neuroanatomy that incites and perpetuates many chronic muscular TMD symptomatology, that can be readily resolved in patients that meet the diagnostic criteria for DTR candidacy, using the ICAGD coronoplasty that is performed in the maximum intercuspal position (MIP), without employing treatment splints, deprogrammers, appliances, orthotics, or mandibular repositioning. Additionally, this chapter will highlight the newest disclusion time reduction therapy (DTR) studies that support the clinical implementation of this highly effective measured occlusal treatment for occluso-muscle disorder.
Full Text Chapter Download: US $37.50 Add to Cart
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Employing T-Scan Synchronized with Electromyography to Treat Chronic Occluso-Muscle Disorder
Prolonged Disclusion Time and occlusal surface excursive friction are present within an occlusal scheme resultant from many contributory factors. These eight factors predispose the occlusion to excursive movement friction: the Angle’s Classification, an anterior Open Occlusion, the presence of occluding 3 rd molars, poor vertical tooth orientation, a lack of canine contact in MIP, shallow anterior guidance surfaces, an exaggerated Curve of Spee, tipped-up mesiodistal molar orientation, and lingual-to-lingual working side excursive contacts.
Full Text Chapter Download: US $37.50 Add to Cart
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