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Results for “Tooth Mobility”

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At least 73 records · Page 4Linked to original sources
PubMed1978

[Studies with the HSE-digital periodontometer on tooth mobility and for checking of clinical degrees of mobility].

The mobility of normal teeth and teeth with periodontal lesions could be measured by means of the newly constructed HSE-digital-periodontometer and specially developed measuring head. After obtaining norm values, measurements of pethological changes allowed us to determine to what degree the clinically increased mobility of teeth was subject to subjective influences (range of error 36.5 to 70.5%). These results suggest that the scale of clinical grades of tooth mobility be increased to 5 altogether and that practical objective measuring apparatus be developed especially for dental practice.

Adult↗
PubMed1989

[Tooth mobility and containment].

Periodontal destruction often leads to tooth hypermobility. In the presence of jiggling forces, traumatic occlusion can provoke a progressive mobility, and in certain cases, accelerate the periodontal destruction in presence of periodontitis. Treatment of infection alone is enough to stop the periodontal destruction. If the mobility becomes progressive, or if the hypermobility impedes the masticatory function of the patient, an occlusal adjustment and/or a splint are valuable to assure the longevity of a tooth. Tooth mobility is the physiological adaptation of the periodontium to the traumatic occlusion, and is, in itself, not an indication for splinting.

Dental Occlusion, Traumatic↗
PubMed1990

Dental implant abutment resembling the two-phase tooth mobility.

Natural teeth and dental implants have differing degrees of mobility thus causing a potential biomechanical problem when connected by fixed bridgework. The clinical follow-up often discloses marginal bone loss around an implant neck probably due to high stress factors. An implant with a built-in compliance resembling the tooth mobility could be advantageous for stress distribution. With axial loading the proposed 'elastic'-test model accomplishes this demand. By means of theoretical and experimental studies this 'elastic'-test model is optimized and compared with a stiff implant-model. The results show a 20 times reduction of stress accumulation in bone with the 'elastic'-test model.

Biocompatible Materials↗
PubMed1975

Occlusal characteristics and tooth mobility in periodontally healthy young males classified orthodontically.

Three groups of periodontally healthy young males classified as to orthodontic status by the Handicapping Labio-Lingual Deviations Index were evaluated for various occlusal characteristics. A much larger proportion (95%) of the orthodontically normal subjects (Group I) had an Angle Class I type of occlusion than the Group II subjects requiring orthodontic care (60.5%), or the Group III subjects who had received orthodontic care (63.4%). The percentages of subjects with a "cuspid-protected" type of occlusion were larger in the orthodontically normal and orthodontically treated groups than in the group requiring orthodontic care. Anterior displacement of the mandible in closing from centric relation to the intercuspal position was found in the majority of subjects in each group. Displacement of more than 2 mm was most common in the subjects requiring orthodontic care. Only 1 of the 41 orthodontically treated subjects reported that his occlusion had been adjusted by grinding after tooth movement. There were no statistically significant differences in mean tooth mobility values between the orthodontically normal and orthodontically treated subjects. The lateral incisor tooth had a significantly lower mean mobility value in subjects whose orthodontic care included removal of the first premolar than in subjects treated without removal of the first premolar. Wear facets were common in all three groups. Based on the findings, one can conclude that orthodontic therapy was only partially successful in obtaining the objectives described as part of an ideal result. It should be noted, however, that the status of the dentition and occlusion prior to orthodontic treatment could not be determined for more than a few subjects.

Adult↗
PubMed1991

[The effect of physiological tooth mobility on the friction between the bracket and the arch].

This study compared frictional forces which occurred in vivo and in vitro. A testing device was used which allowed reproduction of friction measurements carried out on upper central incisors of volunteers under laboratory conditions with the bracket fixed immovable. By this means changes of friction due to physiological tooth mobility and occlusal load of the bonded teeth could be investigated. While the friction measured in vitro with immovable brackets and in vivo without occlusal load did not differ significantly, additional tooth movement by occlusal load resulted in significant reduction of friction magnitude. It should be kept in mind that the mobility of those teeth investigated was absolutely normal, while it is usually increased during orthodontic treatment. Due to this effect and influences resulting from chewing various kinds of food, it can be estimated that the frictional forces occurring with orthodontic treatment are even smaller in comparison to in vitro experiments with immovable brackets.

Biophysical Phenomena↗
PubMed1974

[Tooth mobility].

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Periodontal Diseases↗
PubMed1998

Displacement of a mobile tooth during impression procedure: effect of impression tray design.

When fabricating prostheses in a partially edentulous arch with some mobile teeth, it is important to minimize tooth displacement during the impression procedure. The present study examined the effect of custom tray designs on the displacement of a mobile central incisor in a mandibular simulation model with six anterior teeth. Twelve custom trays were designed according to the different spaces and perforated holes in the region of the remaining teeth. As a result, the degree of displacement of the mobile tooth could be reduced according to the size of spaces and the location of perforated holes in the custom tray.

Analysis of Variance↗