HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

Association of malocclusion and functional occlusion with temporomandibular disorders (TMD) in adults: a systematic review of population-based studies.

Abstract
The aim of this systematic review of population-based studies was to establish whether or not associations exist between different types of malocclusions, as well as factors of functional occlusion (eg, occlusal interferences, nonworking-side occlusal contacts) and temporomandibular disorders (TMD) in adults 20 years or older. Defined criteria were employed in the search of MEDLINE and EMBASE databases, as well as in a manual search. Finally, using inclusion criteria (eg, random sampling from residents' registration office files or census lists, adequate response rates), out of 22 preselected studies, four relevant population-based studies on this subject were found. Eighteen studies were excluded because of insufficient description of material and methods (eg, lack or unclear description of sample method, randomization, age distribution), mixed under- and over-20-year-old study population, or different outcome of interest (eg, tooth loss, dentures). The methodologic quality of the selected studies was established with a quality assessment list. The average total methodologic score achieved was 43 out of a possible 100 points. Few associations were reported between malocclusion and parameters of functional occlusion and clinical as well as subjective TMD, and these associations were not uniform. No particular morphologic or functional occlusal factor became apparent. Additionally, the occlusal factors found were partly protective for TMD, ie, subjects with these occlusal parameters showed fewer signs and symptoms of TMD (angle Class II malocclusion, deep bite, anterior crossbite). A positive relationship was only described in two cases-between the number of rotated lateral teeth and subjective symptoms of dysfunction, and between excessive abrasions and clinical dysfunction. In neither case, however, was the strength of the correlation given. In summary, few associations were established between malocclusion or functional occlusion and signs and symptoms of TMD. In view of the small number of randomized studies and their methodologic quality, these results should be verified through further valid representative studies.
AuthorsDietmar Gesch, Olaf Bernhardt, Antje Kirbschus
JournalQuintessence international (Berlin, Germany : 1985) (Quintessence Int) Vol. 35 Issue 3 Pg. 211-21 (Mar 2004) ISSN: 0033-6572 [Print] Germany
PMID15119680 (Publication Type: Journal Article, Review, Systematic Review)
Topics
  • Adult
  • Dental Occlusion
  • Humans
  • Malocclusion (complications)
  • Research Design
  • Sampling Studies
  • Temporomandibular Joint Disorders (etiology, physiopathology)

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: