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Results for “Tooth Exfoliation”

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At least 163 records · Page 9Linked to original sources
PubMed2001

[Exchange of dentition and its control. Overview of current knowledge and personal experience].

Physiological dentition exchange is often interfered with exogenous and endogenous factors. For this reason it must be steadily regulated. The authors present complex view on this topic based on literature studies and own experiences. The authors define fundamental principles "guided exchange", "tooth eruption" and "eruption path". Correct explication of these ideas is necessary for text understanding. Dentition exchange is considered as complex of eruption interactions of individual permanent teeth including molars. The project is based on idea that dentition exchange time is optimal for preventive interventions. At the end the authors underline the importance of global application of the above-mentioned principles on the whole child population.

Child↗
PubMed2004

Factors that influence the proclination or retroclination of the lower incisors in children with prolonged thumb-sucking habits.

In some children with a prolonged finger-sucking habit, the lower incisors are retroclined, however, proclination of the lower incisors has been frequently observed. The purpose of this study was to determine how such differences develop in the child with a digit-sucking habit. Children with a prolonged thumb-sucking habit and proclination of the lower incisors (Ili/ML > 97 degrees) were cephalometrically and clinically compared to persistent thumb-suckers with retroclined lower incisors (Ili/ML < 89 degrees). In the group with retroclined lower incisors the angle between the thumb and the lower incisors was significantly smaller and the thickness of the lower lip significantly thinner than in the group with proclined incisors. A higher frequency of early loss of deciduous molars was also observed in the group with retroclined incisors. The tightness of the lower lip, early loss of deciduous molars and the angle between the teeth and the thumb are factors which have been identified to influence the inclination of the lower incisors in persistent digit suckers. The majority of children with prolonged thumb-sucking have proclined lower incisors rather than retroclined lower incisors.

Adolescent↗
PubMed2004

[Eruption disturbances].

Eruption disturbances of teeth should not be considered as a curiosity. Acquaintance with these phenomena should form a substantial component of the dentist's, orthodontist's and oral and maxillofacial surgeon's basic expertise. Early detection of these disturbances followed by treatment in due time, can minimise progressive negative effects, such as the development of severe malocclusion. Treatment modalities are described.

Child↗
PubMed1978

[Histological examinations of persisting milk teeth (author's transl)].

In twelve patients aged 13 to 24, histological examinations of twenty persistent milk teeth (with persistency having been due to aplasia of permanent teeth) showed that root resorptions are possible in such cases too. Cellular resorption results in the root being decomposed lacunally or linerly, respectively. The formation of osteodentin, which is a result of the phase of apposition and which is taking place in the pulp and along the surface of resorption, respectively, is considered a characteristic concomitant phenomenon. However, this tissue does not cause "true ankylosis". Accordingly, use of the term "ankylosis" to describe such cases is questionable. The author, on the strength of the results obtained in these studies, believes that root resorption of persistent milk teeth is a pathological process in the case of congenital absence of permanent teeth.

Adolescent↗
PubMed2004

[What is the relation between the presence of caries in the deciduous dentition and the chronology of the eruption of the permanent teeth?].

Based on data obtained from a prospective epidemiological study in a random sample of 4468 Flemish children, accurate emergence ages for permanent teeth could be established. When data on permanent tooth emergence in different populations are compared, differences are most pronounced for premolars. Several authors hypothesised that this difference could be explained by a difference in caries experience in the primary molars. The purpose of this study was to quantify the effect of caries experience in a primary molar on the timing of emergence of its successor. The results indicate that the emergence of the premolars was accelerated by 2 to 8 months when its predecessor had been decayed and or filled but had not been extracted. Premature loss of maxillary primary molars resulted in a significant acceleration of the emergence of the premolars; this was not observed in the mandible. In conclusion, when considering permanent tooth emergence ages, caries experience in the primary dentition should be taken into account.

Age Factors↗
PubMed2005

Contemporary space maintenance for the pediatric patient.

Primary teeth play a critical role in the growth and development of a child. In addition to their role in esthetics, eating, speech, and to encourage normal function and resultant expected growth, the other main function of a primary tooth is to hold space for the permanent successor until it is ready to erupt. Space maintenance forms an integral part of preventive and interceptive orthodontics. After the premature loss of a tooth, not only do space maintainers maintain function and preserve arch length, they also maintain esthetics and eliminate any potential psychological damage a child could face as a result of the premature loss of teeth. The space maintainer also allows the permanent tooth to erupt unhindered into proper alignment and occlusion.

Child↗
PubMed2005

Incidence of retained deciduous teeth in a Nigerian population: an indication of poor dental awareness/attitude.

This pilot study aimed at assessing the incidence of retained deciduous teeth in a Nigerian orthodontic population, which could be helpful in teaching, as well as motivation of the community. A total of 361 patients were seen between January 2001 and May 2003 at the orthodontic clinic of University College Hospital, Ibadan, Nigeria, and 60 (16.6%) of them comprising 31 (51.7%) males and 29 (48.3%) females with age range of 7-23 years (mean age, 12.3 + 4.8 SD) presented with retained deciduous teeth. The social classification of the patients was according to the Registrar General's Social Class with no significant differences between the social classes (p > 0.05). Generally, more males had this occlusal anomaly than females. Angle's class I occlusion was found most in the subjects with the anomaly. Bilateral presentation of the anomaly was more than unilateral cases. The incidence was considered high and suggests a need for intensified dental education for the community for earlier preventive/interceptive measures.

Adolescent↗
PubMedDate not supplied

[Deciduous dentition and orthognathodontic prevention. 2].

One of the main factors in the prevention of malocclusion is the preservation of healthy primary dentition until the time of normal shedding. By this contribution the Authors describe the restorative procedures and the pulp and canal treatments to be applied in deciduous dentition as well as the clinical and therapeutic problems connected with the early loss and the abnormal persistence of deciduous teeth. These therapeutic measures, in addition to caries prevention, have a very important role in the promotion of the normal development of occlusion.

Child↗