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RESEARCH PRODUCT

Condylar position indicator and T-scan system II in clinical evaluation of temporomandibular intracapsular disease.

Lorenzo Lo MuzioAngela Pia CazzollaVincenzo ParzialeClaudio ChimentiMaurizio BossùA. SabatucciDomenico CiavarellaM. MastrovincenzoMaria Michela SurianoAntonio Palazzo

subject

Dental Occlusion CentricTime FactorsDentistryMandibleMedicineRange of Motion Articulardental modelsHealthy subjectsJaw movementSignal Processing Computer-AssistedCentric relationMethod of analysisCentric RelationTemporomandibular Joint DisordersModels Dentalmedicine.anatomical_structurecomputer-assistedOral SurgerySymptom Assessmenttemporomandibular joint diseaseClinical evaluationAdultcentricDental ArticulatorsAdolescentRotationarticularCondylerange of motionBite ForceYoung Adultstomatognathic systemFacial PainHumanscondylar positionsignal processingbusiness.industryT-Scan systemMandibular Condylecentric relation; condylar position; condylar position indicator; T-Scan system; temporomandibular joint disease; adolescent; adult; bite force; case-control studies; centric relation; dental articulators; dental models; dental occlusion centric; facial pain; humans; jaw relation record; joint capsule; mandible; mandibular condyle; range of motion articular; rotation; signal processing computer-assisted; symptom assessment; temporomandibular joint disorders; time factors; tooth; waxes; young adultdental occlusioncondylar position indicatorTemporomandibular jointT-scan Condylar position indicator temporomandibular intracapsular diseasePosition (obstetrics)OtorhinolaryngologyJaw Relation RecordCase-Control StudiesWaxesSurgerybusinessToothJoint Capsule

description

The pathogenesis of temporomandibular joint intracapsular disease (TMJI) is multifactorial and its diagnosis is not easy. In this work authors show two types of clinical analysis: the Condylar Position Indicator (CPI) and T-Scan 2 system.Twenty patients (mean age of 24.5 years) with TMJI problem and 10 healthy matched subjects (mean age: 25.4 years) were selected. Analysis of TMJI was performed on each patient by means of Condylar Position Indicator (CPI) and T-Scan System II tests.Eight patients presented vertical symmetrical condylar distraction greater than healthy subjects (P-value0.001). T-Scan showed a difference of Percentage of Force (POF) not greater than 5%. Seven patients showed sagittal shift greater than healthy subject (P-value0.001). T-Scan records showed a difference of POF greater than 5%. Five non-healthy subjects presented sagittal, vertical, transverse shift greater than healthy subjects (P-value0.001). T-Scan records show a difference of POF greater than 5%.In this work authors present a new method of analysis. CPI indicates discrepancy of the condyle position in CO from CR and T-Scan allows the operator to study all teeth contacts and occlusal forces taking place during dynamic jaw movement.

10.1016/j.jcms.2011.07.021https://pubmed.ncbi.nlm.nih.gov/21880500