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Dental Journal (Majalah Kedokteran Gigi)

ISSN 1978-3728

Vol. 39 / No. 4 / Published : 2006-10

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Original Article :

The effect of mastication muscular tone on facial size in patients with down syndrome

Author :

      Abstract :

      Muscular hypotonia is one of the clinical signs in patients with Down syndrome. As a characteristic of patients with Down syndrome, hypotonia is clearly evident in face expression and oral dysfunction. Dentocraniofacial growth abnormalities in patients with Down syndrome may be influenced by genetic and environmental factors. Stomatognathic system musculature as an environmental factor (factor outside the bone) can affect dentocraniofacial growth by orofacial muscles activities when chewing, swallowing, breathing, and speaking. Oral dysfunctions commonly seen in patients with Down syndrome are open mouth, protruding tongue posture, difficulties when chewing, swallowing, and speaking, drooling, and mouth breathing. The purpose of this study was to observe how the mastication muscular tone affecting the facial size of Down syndrome patient. Twenty five of 14–18 years old children with Down syndrome were diagnosed by clinical characteristic and cytogenetic examination. Mastication muscular tone was described by masseter and temporalis muscle synergy and oral function, whereas the facial size consisted of facial size of lateral, anteroposterior and vertical growth. The result of regression test revealed that the degree of mastication muscular tone has a significant effect on facial size of the anteroposterior growth and facial size of vertical growth, but did not significantly influence the facial size of lateral growth.

      Keyword :

      mastication muscular tone, facial size, Down syndrome ,

      References :


        Archive Article

        Cover Media Content

        Volume : 39 / No. : 4 / Pub. : 2006-12
        1. Effectivity Of Blunt End With Side Hole Irrigation Needle To Eliminate Root Canal Bacteria
        2. Prevalence Of Oral Habits In Homeless Children Under Care Of Yayasan Bahtera Bandung
        3. The Effect Of Mastication Muscular Tone On Facial Size In Patients With Down Syndrome
        4. Prevalence of hypodontia in chinese orthodontic patients
        5. The periodontal pain paradox: difficulty on pain assesment in dental patients (the periodontal pain paradox hypothesis)
        6. Clinical application of the activity index to parameter for evaluation of electromyographic activity of the masticatory muscles
        7. The fractographic analysis of three dentin bonding agents on tooth surface
        8. The Transverse Strength Of Acrylic Resin After Coleus Amboinicus, Lour Extract Solution Immersion
        9. The Potential Application Of Stem Cell In Dentistry
        10. Roles of secretory leukocyte protease inhibitor amniotic membrane in oral wound healing