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Biomedical subjects

V J Miller

Publications and source records attributed to V J Miller.

At least 19 recordsLinked to original sources
PubMed1997

Temporomandibular joint dysfunction in children.

Sixteen pediatric patients with temporomandibular joint (TMJ) dysfunction were successfully diagnosed following appropriately selected imaging methods. The role of radiography in diagnosis of TMJ dysfunction is essential in distinguishing between the osteogenic and non-osteogenic etiologies. Computed tomography (CT) was found to be a valuable imaging method, with advantages over plain film radiography. The treatment modalities considered were: non-invasive therapy, occlusal therapy and surgical treatment. The treatment of choice was dependent on the osteogenic or non-osteogenic etiology. Surgery was considered only when the non-invasive or occlusal therapies were ineffective.

Adolescent↗
PubMed1997

Condylar asymmetry and handedness in patients with temporomandibular disorders.

The relationship between condylar asymmetry and handedness of dentate patients with temporomandibular disorders was investigated. A group of 28 patients (22 females and 6 males) was studied. The mean age was 28.29 years, with a range from 10 to 54 years. The association between handedness and the sign of the condylar asymmetry index was examined using Fisher's exact test. No difference was found between sign and handedness (P > 0.05). This suggests that handedness does not affect the asymmetry index in this group of patients.

Adolescent↗
PubMed1997

Condylar asymmetry measurements in patients with an Angle's Class III malocclusion.

Condylar asymmetry/age relationships were investigated in a group of 23 dentate patients with an Angle's Class III malocclusion and no signs or symptoms of temporomandibular disorders and no prior orthodontic treatment. Condylar asymmetry was determined from panoramic radiographs. A graph of age versus asymmetry index was then plotted. There was no significant correlation between age and the asymmetry index in these patients (R2 = 0.019). This is similar to results obtained for a group of patients with a Class I occlusion who were included as controls, and similar to a group of patients with an Angle's Class II division 2 malocclusion investigated previously.

Adolescent↗
PubMed1996

The condylar asymmetry-age relationship in determining myogenous or arthrogenous origin of pain in patients with temporomandibular disorders.

The relation of age to asymmetry index of the condyles of the temporomandibular joint differs for groups of patients with a myogenous and arthrogenous origin of pain. It was decided to investigate if this has clinical diagnostic significance. Twenty-eight patients complaining of temporomandibular disorders (TMD) were included in this study. All were dentate with a maximum of five missing teeth including third molars allowed. Condylar asymmetry was measured according to the method of Habets, and this was used to compute the expected patient age for both curves. The patient was assigned to the group with computed age closest to true age. The association between category derived from graphs and that from clinical diagnosis was studied. There was agreement clinically and graphically in 25 of 28 patients. The Kappa statistic to explore the agreement between the two methods gave a value of 0.78, which allows rejection of the hypothesis that agreement was based on chance alone.

Adolescent↗
PubMed1996

Condylar asymmetry and age in patients with an Angle's Class II division 2 malocclusion.

The relationship of age to condylar asymmetry varies for different groups of patients with temporomandibular disorders. Those with a problem of myogenous origin show a parabolic curve, while those with an arthrogenous problem show a linear relation. A group of control subjects with no signs or symptoms of temporomandibular disorders showed no correlation between age and asymmetry index. A group of 17 patients with no signs or symptoms of temporomandibular disorders but with Angle's Class II Division 2 malocclusions and deep overbite, was studied for an age-condylar asymmetry relationship. Only patients with a maximum of one missing tooth, other than third molars, were included. As a control, a group of 22 individuals with an Angle's Class I occlusion was considered. The same exclusion criteria as above was applied to this group. Age-asymmetry indicies were plotted for both groups. No correlation between age and asymmetry index was found in either group (coefficients of determination 0.054 and 0.002, respectively). This may support the conclusion that Angle's Class II Division 2 malocclusion with deep overbite is not a major factor in the aetiology of these disorders.

Adolescent↗
PubMed1995

The relation of age and handedness to condylar asymmetry in a group of edentulous patients with a temporomandibular disorder of arthrogenous origin.

A group of edentulous patients with a temporomandibular disorder of arthrogenous origin was found to have a mean asymmetry index of 7.38%. This was lower than a group with a disorder of myogenous origin, but higher than a control group of non-patients. A graph of age vs. asymmetry index showed no correlation, in keeping with similar results found in a group of patients with a disorder of myogenous origin.

Adult↗
PubMed1994

Variation of condylar asymmetry with age in edentulous patients with a craniomandibular disorder of myogenous origin.

The effect of age on condylar asymmetry in dentate patients has already been investigated and a clear relationship between these two variables was established both for a group with an arthrogenous origin and with myogenous origin of pain. In this study, the mean asymmetry index for an edentulous group of patients with a craniomandibular disorder of myogenous origin was found to be 12.55%, less than that for both dentate groups. There appeared to be no correlation between age and the asymmetry index in this group, suggesting that different mechanisms may be at work in the development of these disorders.

Adult↗
PubMed1994

Condylar asymmetry and its relation to age in a group of patients with a craniomandibular disorder of myogenous origin.

A group of patients with a myogenous origin of craniomandibular disorders was found to show a variation of condylar asymmetry with age. The curve obtained by plotting patient age against their asymmetry index was parabolic in nature. This differed from a group of patients with an arthrogenous origin of pain, where a linear correlation with age, with a negative slope, had previously been found. The mean asymmetry index for this group of patients was found to be 23.77%. This is higher than that reported for a group of patients with a craniomandibular disorder of arthrogenous origin, namely 18.76%. It appears that these two groups differ in the variation of condylar asymmetry with age..

Adolescent↗
PubMed1992

The effect of age on condylar asymmetry in patients with craniomandibular disorders of arthrogenous origin.

A group of patients with a craniomandibular disorder of arthrogenous origin demonstrated an age-related variation of condylar asymmetry with age. This may reflect a greater depletion of the mesenchymal cell layer, which is responsible for adaptation of the articular surface as age increases. This would then result in greater deterioration of the articular surfaces and a consequent decrease in condylar asymmetry.

Adolescent↗