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At least 307 records · Page 17Linked to original sources
PubMed1980

Dental diagnostic problems of potential genetic significance: the dental practitioner as geneticist in the developmental disabilities clinic.

A high incidence of aberrant dental formation can be anticipated in developmentally disabled children, particularly where the etiologic factors for developmental retardation are presumably of organic origin. The dentist, practicing in the developmental clinic, must frequently determine the developmental significance of such dental variation. In this capacity, his familiarity with the dental features of genetic disease can contribute significantly to more precise diagnosis.

Child↗
PubMedDate not supplied

Orthodontic diagnosis and treatment planning in the primary dentition.

Early recognition of malocclusions is in the hands of the primary care providers. Pediatric and general dentists should be familiar with conditions that are known to interfere with growth and development of a child. Conditions such as early loss of primary teeth, anterior and posterior crossbites, and some Class III skeletal problems can be treated in the primary dentition to facilitate normal growth and development and offered some benefit to the patients. On the other hand, aggressive arch length modulation, Class II correction and intervention for vertical problems, including non-nutritive sucking habits, is largely unwarranted.

Child, Preschool↗
PubMed1994

A study of the etiological factors associated with the development of malocclusion.

The prevalence of malocclusion among 1608 children (777 boys and 831 girls) in the age group of 5-7 years, selected from different schools of varied locations of Delhi was observed as 18.4%. A number of factors that could influence the normal development of occlusion during early mixed dentition stage were recorded. These included spacing in anterior teeth, attrition of primary teeth and deleterious oral habits. The socio-demographic variables included occupation of parents, family size, location type and the school type. The age of the child and sex were also considered. In order to find out the contribution and importance of above mentioned occlusal characteristics and socio-demographic factors in the development of malocclusion, the data were subjected to univariate analysis. Further a stepwise logistic regression analysis was done to know whether any association exists between the occurrence of malocclusion and combination of these factors. Four factors were found to contribute significantly in the occurrence of malocclusion explaining 15.5% variation in case of boys and 22% in case of girls. More significant factors were absence of spacing, effect of habits and lack of attrition of primary teeth. About 80% of the total variation was independent of these factors and could not be explained by this analysis. It further testifies possible predominance of genetic influences in the development of occlusion.

Adolescent↗
PubMed1993

[Mechanism of the eruption of secondary dentition].

The second dentition is a process determined in space and time which presumes the presence of the permanent dental germ, its optimal position and the soundness of the periapical area. In absence of these conditions the clinically and histologically proved pathological phenomena (ex. the pathological triad of second dentition) can occur.

Child↗
PubMedDate not supplied

A long-term followup on the retention rate of zinc oxide eugenol filler after primary tooth pulpectomy.

A retrospective study of all the patients' records (> 6000) in a pediatric dental practice was done to assess ZOE retention after a pulpectomized primary tooth was lost and the succedaneous tooth erupted. There were 65 children with 81 ZOE pulpectomies done in 30 incisors and 51 molars. Pulpectomies were done at a mean chronologic age of 52.2 months and followed for a mean time of 90.8 months from time of placement. The initial radiograph after the pulpectomized tooth was lost, showed retained ZOE filler particles in 49.4% of the cases while 27.3% had retained ZOE a mean time of 40.2 months after pulpectomy tooth loss. Short-filled pulpectomies retained significantly less ZOE than long fills (P = 0.04). With time, retained ZOE particles either resorbed completely or showed reduction of filler size in 80% of the cases. No pathology was associated with the retained ZOE particles. Retention of ZOE was not related to pulpectomy success (P = 0.11), preoperative root resorption (P = 0.76), age of the patient (P = 0.24 incisors; P = 0.87 molars), extraction/exfoliation of the pulpectomy (P = 0.75), or timing of the pulpectomy's loss (P = 0.72).

Age Factors↗
PubMed1996

A morphological study of root resorption of the maxillary first deciduous molars.

The aim of this study was to elucidate the relationship between root resorption of the maxillary first deciduous molars and the developmental state of the successive permanent teeth. Twenty-four specimens of the maxilla from 12 dry skulls were classified into four dental eruption stages based upon their deciduous and permanent dentition. Serial sections prepared from the maxilla and embedded in polyester resin were observed with soft X-ray films. The area from the lowest point of the protruded part of the zygomatic process to the alveolar crest of the maxillary first deciduous molar was divided into 6 areas parallel to the Frankfort plane. Specimens from the upper 1/6, 3/6 and 5/6 areas were used. In addition, the shortest distance from the root resorption surface to the bony crypt was measured. The bony crypt containing the successive permanent tooth germ was located closer to the buccal root among the 3 roots of first deciduous molars but grew lingually with the progress of eruption stage. The distance from the root resorption surface to the bony crypt shortened and resorption actively progressed from the deciduous dentition stage to the first molar, and the central incisor reached the occlusal line in the deciduous dentition stage. Three-dimensional reconstruction to reproduce the relationship between the root and bony crypt revealed an increase in the root resorption surface with the eruption phase and growth of the bony crypt in the direction of root furcation.

Alveolar Process↗
PubMedDate not supplied

An alternative restorative method for regional odontodysplasia: case report.

A 5-year-old Caucasian male presented with early loss of multiple deciduous teeth. All the characteristics were consistent with the diagnosis of regional odontodysplasia (ROD). Significant initial findings included premature loss of multiple primary mandibular teeth and some malformed permanent teeth. The affected teeth showed hypoplastic enamel and dentin, short roots, and wide pulp chambers, and were localized in the mandibular dentition. Treatment objectives for this patient were to provide improved esthetics, restored chewing function, and space maintenance by the construction of a temporary prosthetic restoration. However, with limited tooth support and an unusual occlusal pattern, it is difficult to obtain satisfactory retention and esthetics with traditional prosthetic techniques. In this article we introduce an alternative method for fabricating a custom removable denture and discuss the prognosis of the malformed permanent dentition and further treatment plan.

Child, Preschool↗