Sagittal position of the temporomandibular joint disc after treatment with an activator: an MRI study

Journal Title: UNKNOWN - Year 2018, Vol 2, Issue 1

Abstract

Abstract: Background: The relation of cause and effect between orthodontic treatment and joint dysfunction, especially disc displacement, is not proved yet. The orthodontic treatment that imposes stress on the temporomandibular joint is the mandibular advance to correct the classes II by mandibular retrognathia. The study aimed to explore the effect of mandibular advancement using rigid activator associated with extra-oral forces on the sagittal position of temporomandibular joint (TMJ) disc. Methods: 63 children, 10.6 +/- 1 years old with class II and mandibular retrognathia were selected from primary schools. An imaging magnetic resonance exploration (MRI) was performed on 126 TMJ before treatment (t1) and one year after treatment (t2) .The data were analyzed by the Statistical Package for the Social Sciences (SPSS).The error risk α was 5%. The Friedman’s Chi2 Test for paired data was used. The difference p was considered significant if p<.05. Results: At t2, the discs generally occupied a more anterior position remaining within the bounds of normality and 5 of them have presented a displacement. Conclusion: Overall, after one year of mandibular advancement, the discs have maintained a normal position.

Authors and Affiliations

BENKHERFALLAH NADIRA, DJERAF MALIKA, SAFIA LARABA, BOUDJEMAA MANSOURI, LILA stof

Keywords

Related Articles

Classification of methods for generating pseudo-CT from MRI images for MRI-alone RT

Background: Since the last decades, research have been oriented towards an MRI-alone radiation treatment planning (RTP), where MRI is used as the primary modality for imaging, delineation and dose calculation by assignin...

Polymorphism rs3087243 is associated with the occurrence of ankylosing spondylitis in the West Algerian population

Background: Numerous studies have shown that polymorphism rs231775 of the CTLA4 gene is strongly implicated in the development of ankylosing spondylitis (AS). Other polymorphisms of this gene are candidates that may have...

Study of hormone levels and semen parameters in infertile patients and fertile controls from Batna

Background: Male infertility or the inability of a man to procreate is a major public health problem and is a leading cause of marital discord in countries such as Algeria. Endocrine disorders that can be associated with...

Algorithmic processing to aid in leukemia detection

Background: I present our medical context with some basic concepts in order to understand the results of our work, and then I begin the explanation of mathematical morphology. I will conclude by the description of algori...

Colorectal Cancers Screening in the General Population: Focusing

Colorectal cancers are common throughout the world, although their incidence varies across continents and countries. 28% of these cancers are rectal, and two-thirds of the remaining 72% are of left colonic location. Scre...

Download PDF file
  • EP ID EP648614
  • DOI 10.26415/2572-004X-vol2iss1p140-149
  • Views 39
  • Downloads 0

How To Cite

BENKHERFALLAH NADIRA, DJERAF MALIKA, SAFIA LARABA, BOUDJEMAA MANSOURI, LILA stof (2018). Sagittal position of the temporomandibular joint disc after treatment with an activator: an MRI study. UNKNOWN, 2(1), 140-149. https://europub.co.uk./articles/-A-648614