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At least 883 records · Page 49Linked to original sources
PubMed2000

Jaw and tooth abnormalities detected on panoramic radiographs in New Zealand children aged 10-15 years.

Panoramic radiographs of 1,608 children and adolescents aged 10 to 15 years (797 males and 811 females) were reviewed to determine the prevalence of tooth and jaw abnormalities. Abnormalities were detected on 21 percent of the radiographs (23 percent females and 17.3 percent males); 879 teeth were diagnosed with abnormalities on 331 radiographs. The more common abnormalities were malpositioned teeth, missing teeth, misshaped teeth, and teeth with hypoplastic appearance. Bony abnormalities and growth problems were detected in a few radiographs. This study demonstrates the value of panoramic radiography in detecting or confirming dental abnormalities, and supports recommendations on the use of panoramic radiography to aid in the assessment of dental development.

Adolescent↗
PubMed2000

Treatment of trauma to the primary and young permanent dentitions.

An overview of the various possibilities for trauma to the primary and young permanent dentition has been presented. Appropriate treatment procedures have been described. Advances in dental science have been great, and dental materials have become superior to what they were just a few years ago. The dentist must never forget the variabilities of human responses to any of the treatment techniques, however, and the dentist must never be dogmatic in approach. The dentist should be able to diagnose, interpret, and alter any of the treatment techniques as more scientific evidence is obtained.

Child↗
PubMed2000

Ridge preservation of dentition with severe periodontitis.

Severe loss of alveolar bone height and width can occur following the removal of teeth with advanced periodontitis. This compromise of the alveolar bone can limit the options available for achieving an acceptable dental restoration. Two case reports are presented of alveolar ridge augmentation after tooth removal and before implant placement using bone grafting and a biodegradable membrane. The resultant alveolar ridges in both patients were adequate for the placement of dental implants.

Adult↗
PubMed2000

Intrusion injuries of primary incisors. Part III: Effects on the permanent successors.

Intrusion injuries of the primary dentition are highly associated with developmental disturbances of their successor teeth. The age of the child at the time of injury, the direction and severity of the intrusion, and the presence of alveolar bone fracture are important variables influencing the effect of primary tooth intrusion on the developing permanent germ. The developmental defects of the permanent successor tooth range from mild alteration in enamel mineralization to severe sequestration of the developing germ. This article will review the developmental anomalies of the permanent incisors induced by intrusion injuries of their predecessors.

Age Factors↗
PubMed2000

Trauma to the primary and young permanent dentitions.

It is the responsibility of the dentist to stay current on the latest techniques available to treat traumatic injuries. The charts included provide most of the potential emergency treatment possibilities, recommended follow-up treatment, and final treatment outcomes essential to providing the best care for our child patients. It is also the responsibility of the dentist to use evidence-based research when adopting treatment protocols. It is not appropriate to use anecdotal or single case studies as a basis for adopting treatment protocols. It is very difficult in this area of trauma to come up with good scientific research with adequate sample sizes and long-term data. Dr. J.O. Andreasen has excellent compiled long-term research on trauma. His books, Essentials of Traumatic Injuries to the Teeth and An Atlas of Replantation and Transplantation of Teeth are two very good books for any clinical practice.

Child↗
PubMedDate not supplied

Unusual impaction of inverted primary incisor: report of case.

A tooth that fails to erupt into a normal functional position by the time it normally should is considered impacted. Impactions of primary teeth are extremely rare, but when it does occur it usually involves the first and second molar. The purpose of this article is to present a case of a four-year-old patient with an impaction of an inverted primary mandibular incisor. On the basis of the patient's family history, the case might be considered as microform of ectodermal dysplasia.

Child, Preschool↗
PubMedDate not supplied

Retrospective survey of dental anomalies and pathology detected on maxillary occlusal radiographs in children between 3 and 5 years of age.

PURPOSE: Radiographs play an important role in the diagnosis of anomalies and pathology of the oral structures of young children as well as in the interception and management of developmental problems in the dentition. The occlusal film, commonly indicated in the young child, is a helpful tool in establishing a baseline and in revealing certain region-specific dental concerns in a timely fashion. The purpose of this retrospective study was to perform a comprehensive examination of maxillary occlusal radiographs in a clinical pediatric population and to determine the prevalence of dental anomalies and pathology in the premaxilla in children between 3 and 5 years of age. METHODS: Radiographs of healthy preschool children (236 males and 264 females), who received their initial examination at the University of Texas-Houston Pediatric Dentistry Graduate Clinic during 1997 and 1998, were reviewed independently by two pediatric dentists, using a 2X magnifying lens and a standard dental light box. Interexaminer discrepancies were resolved by consultation and mutual agreement. RESULTS: Ninety-two (18%) showed no evidence of dental caries, restorations, current pathological conditions, or other anomalies. Frequencies of anomalies such as congenitally missing and supernumerary teeth were consistent with other reports. CONCLUSIONS: These observations emphasize the importance of obtaining intraoral radiographs on preschool children who are in apparent good dental health.

Anodontia↗
PubMed2000

Dental management of traumatic injuries to the primary dentition.

There is considerable information on traumatic injury management of permanent teeth. However, there are no conclusive guidelines for treating traumatized primary teeth. This article will summarize a number of issues relative to primary dentition trauma and provide a system for treatment.

Age Factors↗
PubMed2001

Management of an impacted, dilacerated mandibular left permanent first molar: a case report.

A case of an unerupted mandibular left permanent first molar, a partially erupted permanent second molar, and a congenitally absent third molar in a 12-year-old girl is described. The permanent first molar, being dilacerated and impacted, required surgical exposure of the crowns of the first and second molars and distalization of the second molar, with the help of a space regainer, to bring the molars into occlusion.

Anodontia↗
PubMedDate not supplied

Dens invaginatus in a primary molar: report of case.

A case of dens invaginatus in a mandibular second primary molar of an eleven-year-old boy is presented. The tooth was extracted and examined by scanning electron microscopy. SEM findings demonstrated the presence of defective enamel and cementum in the pulp chamber. Dentinal tissues were also irregular and had fewer and thinner tubules. This case of dens invaginatus in primary molar is an unusual case of the malformation being the only one in the literature.

Child↗
PubMed2000

Palatal finger springs in removable orthodontic appliances--an in vitro study.

Palatal finger springs are often used in removable orthodontic appliances to tip teeth in a mesiodistal direction. There is general consensus that a force of 30-50 g is required to tip a single-rooted tooth, with an activation of about 3 mm for a spring with a load/deflection rate (LDR) of 15 g/mm. The purpose of this report is to establish the magnitude of forces for finger springs made from different types of wires (i.e. those from different manufacturers and of different diameters and lengths). The findings were that springs made from ordinary 18/8 stainless steel wire showed a lower LDR than previously reported. The 18/9 stainless steel springs gave yet a lower LDR. Definite specifications are given for forming springs. For example, a Unitek 0.51 x 17 mm spring can be used when the traditional activation of 2-4 mm is applied, but should increased activation be required (advocated in this report), the spring length would have to be increased to 20 mm to keep the force within the specified range.

Dental Stress Analysis↗
PubMed1952

[Root residues].

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Plant Roots↗