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Y Isoyama

Publications and source records attributed to Y Isoyama.

4 recordsLinked to original sources
PubMed1995

Case report of lateral crossbite. Part I. Mixed dentition.

Lateral crossbite on mixed dentition does not always cause facial asymmetry or functionally abnormal movement of the mandible in children. However, it is often observed that facial asymmetry will worsen during growth in the absence of orthodontic treatment. In adult cases, lateral crossbite is one of the etiological factors of temporomandibular joint disorder. This case report presents two cases of lateral crossbite of mixed dentition. The terms of treatment were shorter than those in cases with permanent dentition. Also, methods of treatment were simpler, and the patients developed favorably. The opposite results were obtained in cases of permanent dentition.

Age Factors↗
PubMed1994

An orthodontic study of temporomandibular joint disorders. Part 2: Clinical research in orthodontic patients.

The purpose of this survey was to investigate the symptoms of temporomandibular joint disorders (TMD) in orthodontic patients and to define the relationships between symptoms and malocclusion and/or orthodontic treatment. The subjects were 532 patients, 6 to 38 year old Japanese, in the orthodontic department of Tokyo Dental College Hospital. They were examined for past or recent TMJ sounds, pain in the TMJ area, and abnormal jaw movements. The prevalence of TMJ symptoms was 33.8%. Sex differences were not statistically significant. The prevalence of TMD symptoms increased with age. TMD symptoms in young orthodontic patients (6-18 years old) were more common than in untreated subjects. Posterior crossbite and open bite patients had a high prevalence of symptoms.

Adolescent↗