title: The relationship between malocclusion, benign joint hypermobility syndrome, condylar position and TMD symptoms.
abstract: The current study investigated the association between temporomandibular disorders, malocclusion patterns, benign joint hypermobility syndrome and the initial condylar position. One hundred sixty-two subjects were analyzed using the Rocabado Temporomandibular Pain Analysis; Helkimo Index parameters; the Carter-Wilkinson modified test; and a mounting cast with condylar position indicator registration (MPI). The study revealed a significant association between: 1. Delta H, skeletal pattern (p = 0.034); 2. Delta Y, transversal malocclusion (p = 0.04); 3. right and left, Delta Z, right and left posteroinferior synovial pain (p < 0.05); 4. hypermobility scale, gender (p < 0.001), malocclusion pattern (p = 0.021); 5. TMJ function impairment, gender (p = 0.043); 6. sagittal malocclusion pattern, right temporomandibular pain analysis joint (TPAJ) (p = 0.0034); 7. TMJ function impairment, left and right TPAJ (p = 0.007); and 8. mandibular motion, left and right TPAJ (p = 0.035, p = 0.015). The conclusion was that anterior crossbite and condylar displacements in the vertical plane are risk factors in developing TMJ symptoms.
authors.affiliation: School of Dentistry, University of Seville, Spain. JmbMora@us.es
authors.forename: José Ma
authors.initials: JM
authors.lastname: Barrera-Mora
authors.forename: Eduardo
authors.initials: E
authors.lastname: Espinar Escalona
authors.forename: Camilo
authors.initials: C
authors.lastname: Abalos Labruzzi
authors.forename: José Ma
authors.initials: JM
authors.lastname: Llamas Carrera
authors.forename: Emilio Jiménez-Castellanos
authors.initials: EJ
authors.lastname: Ballesteros
authors.forename: Enrique
authors.initials: E
authors.lastname: Solano Reina
authors.forename: Mariano
authors.initials: M
authors.lastname: Rocabado
mesh_terms: D000293:Adolescent; D000328:Adult; D018771:Arthralgia / Q000150:complications; D016302:Centric Relation; D003725:Dental Articulators; D005157:Facial Pain / Q000150:complications; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000150:complications; D007593:Joint Instability / Q000145:classification / Q000150:complications*; D008297:Male; D008310:Malocclusion / Q000145:classification / Q000150:complications*; D008311:Malocclusion, Angle Class I / Q000150:complications; D008312:Malocclusion, Angle Class II / Q000150:complications; D008313:Malocclusion, Angle Class III / Q000150:complications; D008335:Mandibular Condyle / Q000473:pathology*; D008875:Middle Aged; D003765:Models, Dental; D024343:Open Bite / Q000150:complications; D057887:Overbite / Q000150:complications; D016059:Range of Motion, Articular / Q000502:physiology; D012307:Risk Factors; D012737:Sex Factors; D013577:Syndrome; D013705:Temporomandibular Joint Disorders / Q000150:complications*; D055815:Young Adult