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Results for “Tooth Attrition”

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At least 19 recordsLinked to original sources
PubMed1978

Prevalence and severity of tooth attrition in Nigerians in rural areas.

A study of the prevalence and severity of attrition in both anterior and posterior teeth has been conducted in two rural communities in Nigeria. 5984 teeth in 190 subjects were examined. Age range of the subjects was from 15-55 years and 58.9% of them were male, while 41.1% were female. The number of subjects with little or no attrition increased with increasing age while varying degrees of severity of attrition increased with increase in age. Attrition was more marked in the mandibular teeth (56.52%) than in the Maxilla (46.71%). The first molar was the most consistently attrited and since tooth attrition can be a cause of neuralgia in the oral region, dentine exposure due to severe attrition should be considered in the differential diagnosis of pain in and around the mouth.

Adolescent↗
PubMed1993

[Age estimation from tooth attritions of lower incisors--discussion on the "Amano's method"].

As a method of age estimation from teeth we focused our attention on attritions of lower incisors. Using the Amano's method, we took records of tooth attritions in the planted state of 83 subjects whose ages ranged from 14 to 76 years. A positive correlationship was found to exist between the tooth attrition index and the actual age, allowing to establish the following formula which graphically shows a straight line: Y = 8.505X + 26.073 (r = 0.607), where X is the mean of attrition indexes of lower incisors and Y, the estimated age. In our method of age estimation through attrition indexes, we took advantage of probability and confidence interval. In addition, our method was contrasted with Amano's method, a widely used one in Japan.

Adolescent↗
PubMed1975

Molar tooth attrition in a selected group of Nigerians.

A study of the degree and gradient of attrition was undertaken on 352 molar teeth of 88 selected Nigerian subjects. A method for the quantification of attrition experience per molar tooth is described. There is a close correlation between age and the degree of attrition of the first molar. This finding may be of value in age determination in forensic odontology. The wear on the first molar is about two stages ahead of that on the second and third molars. It is suggested that the degree of tooth attrition may be an index of masticatory activity.

Adult↗
PubMed1990

The accuracy of simple ordinal scoring of tooth attrition in age assessment.

Tooth wear is frequently used as a method of ageing skeletal remains. Fundamental to this method is the ability to measure the amount of tooth wear. The Brothwell chart based on the Miles method of ageing, uses simple ordinal scoring and is frequently used by archeologists. The purpose of the present investigation was to evaluate the accuracy of simple ordinal scoring in recording tooth wear and ageing skulls. A group of Chinese skulls of known age at death was used. The age range was from 16 to 60 years. A single score per molar tooth was used to record occlusal wear. The data were analysed by regression methods using BMDP statistical software. The results showed that molar tooth wear continues throughout the life of the individual. The first molar teeth wear significantly more quickly than do second molar teeth. Use of a simple ordinal score method for recording wear gives an inaccurate estimate of an individual skull's age at death with a very wide 95% confidence interval.

Adolescent↗
PubMed1991

Replication of human occlusal tooth attrition surfaces for scanning electron microscopic study.

Silicone negative replicas of dentine islands exposed by occlusal attrition were examined on extracted human teeth using the scanning electron microscope. Because the details of the dentinal tubules were reproducible on the silicone impression, the replication technique was applied in vivo to occlusal attrition to demonstrate patent dentinal tubules in cases with symptomatic exposed dentine islands. using this replication technique, it should be possible to monitor the effect of the therapeutic management of symptomatic tooth attrition on dentinal tubule closure.

Dental Impression Materials↗
PubMed1995

Accelerated eruption of rat lower incisor. Relationship between impeded and unimpeded eruption rates, rate of attrition, tooth length, and production of dentin and enamel.

The present investigation studies the effects of persistently cutting one lower rat incisor out of occlusion. Within four days, the rate of eruption of the cut (unimpeded) incisor increased to 216% and that of the uncut (impeded) contralateral to 136% of the baseline rate. While the former remained high, the latter decreased gradually to about 90% within three weeks. The rate of attrition of the impeded incisor increased to 233% of the baseline rate within two days, then fell abruptly, and remained at a slightly lower level than the rate of eruption. Accordingly, the length of the erupted part of the impeded incisor decreased initially, but increased gradually after about four days. Measurements made on SEM micrographs of the series of transverse tooth segments obtained when cutting the incisor out of occlusion, showed that growth-related increase in mesiodistal tooth width was arrested from the 10th segment, dentin thickness decreased gradually to about 50% in the 12th segment, and enamel thickness, after an initial increase, decreased to about 80% in the 11th segment. The present study provides experimental evidence that accelerated eruption affects morphogenesis and histogenesis of the rat lower incisor. An impeded incisor, especially the contralateral, may not serve as an ideal control.

Animals↗
PubMed1982

Tooth attrition and continuing eruption in a Romano-British population.

Cement-enamel junction to alveolar crest (CEJ-AC) distances were measured in Romano-British skulls. Measurements were also made of attrition patterns. The patterns of the two measurements were similar in each group, suggesting that teeth continued to erupt and CEJ-AC alone is misleading as a measurement of bone loss and may not relate to the extent of chronic inflammatory periodontal disease. Estimated bone loss was minimal, confirming that measurements of this nature on dried skulls should only be related to periodontal conditions with caution.

Adolescent↗
PubMed1976

Tooth attrition and the temporomandibular joint.

1. It is thought the differences shown to exist between the unworn sample and the worn sample would have been clearer if the criteria for the classification of worn had been more severe. Examination of the ranges of measurements would make one suspect some subjects suffered dental attrition to a degree that no enamel was left on the occlusal surfaces of the third molars without showing damage elsewhere. The author did not feel competent to assess third molars that had not only lost all their occlusal enamel but also one mm of dentin, so was unable to make his worn classification more stringent. Again the reader is reminded that broeken down or "worn out" dentitions were specifically excluded from the samples...

Adult↗
PubMedDate not supplied

A functional aspect of anterior attrition or flaring and mode of treatment.

The phenomenon of occlusal wear has been generally reported, with no distinction being made between wear of the anterior or posterior teeth. This paper describes a group of patients without oral habits and exhibiting anterior tooth attrition or flaring with minimal posterior tooth attrition. The mandibular anterior movement patterns of the patients studied were evaluated using a Sirognathograph. These patterns appear to be the etiology for the anterior attrition or flaring present. A treatment mode allowing coexistence of this phenomenon with an anterior guidance that does not interfere with the mastication pattern is proposed. A hypothesis that might explain the clinical findings and a mode of treatment are described.

Adolescent↗
PubMed1997

Dental disease in the Chinese Yin-Shang period with respect to relationships between citizens and slaves.

Seventy-one skulls from the Yin-Shang period tombs of Anyang, China, were examined for the incidence of observable dental diseases, including dental caries, alveolar bone resorption (an index of periodontal disease), ante-mortem tooth loss and tooth attrition. Because the remains were excavated from tombs with funerary items, the burials are believed to be of Anyang citizens. Our study indicates carious tooth frequency in the Yin-Shang period was rather low (2.9-4.0%). Periodontal disease frequency was 18.3-26.9%, and ante-mortem tooth loss frequency was 2.0-7.5%. To determine the relative prevalence of overall dental health in the Yin-Shang populations, observations from the 42 male crania were compared to those from 183 male crania of slaves from "sacrificial pits" from the Yin-Shang period (Inoue et al. [1992] J. Anthropol. Soc. Nippon 100:1-29). Results from this comparison indicate no apparent difference between social classes in younger age groups. However, in the older ages the rates of the ante-mortem tooth loss, periodontal disease and tooth attrition were significantly higher in the citizen sample. The findings would suggest dietary development in the Yin-Shang period was not dissimilar enough between social classes to induce clear differences in dental diseases at least at younger ages. Conversely, it appears there must have been significant differences between social classes diets in the earlier phase of the Yin-Shang period to produce the differences in dental disease present in the older samples.

Age Factors↗
PubMed1983

Relationships between attrition and lingual tilting in human teeth.

Associations between occlusal dental attrition and the lingual tilting of human teeth were investigated in two aboriginal California populations. A literature survey suggests lingual tilting is related geographically and temporally to the helicoidal occlusal plane in humans; if true, lingual tilting should be expected throughout the Homo osteological record. Buccal alveolar abscesses, exposed pulp chambers, extent of tooth attrition, angle of lingual tilt, and amount of overjet were observed for lingually tilted teeth. These attributes were analyzed statistically, leading to a conclusion that lingual tilting is slight and infrequent unless tooth attrition is pronounced. It is suggested that lingual tilting is due in part to masticatory stress. A feedback model considers lingual tilting as one conspicuous manifestation of a more complex "severe attrition syndrome," the initial stimulus for which may derive from heavy occlusal tooth wear. Untested possibilities should be examined- e.g., age-related changes, the impact of the helicoidal occlusal plane, and the role of masticatory forces.

California↗
PubMed1985

Tooth loss, attrition and temporomandibular joint changes in a Romano-British population.

Mandibular condyles and temporal fossae were studied in a large Romano-British collection of skulls. The size and shape of the condyles differed from those in previous populations studied. Changes in form or shape of the condyles were age-related and could be correlated to the number of teeth lost on the same side and on the contralateral side. No statistically significant correlations were seen between attrition and condylar form and surface change.

Adolescent↗