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At least 847 records · Page 47Linked to original sources
PubMed1989

Peripheral complex odontome with ghost cell epithelium. A case report.

Odontomes are malformations of dental tissues found commonly within jaw-bones and to a lesser extent in the soft tissue. A case of peripheral complex odontome exhibiting ghost cell epithelium is presented here. The significance of the ghost cells and origin of the odontome are briefly commented upon.

Child↗
PubMed1989

[Dens in dente. Histological characteristics of an unusual case of dens in dente].

We describe a rare case of "dens in dente" in an accessory germ in central location of an anencephalic phoetus. Its characteristics of having enamel surrounding normal dentin and normal pulpar cavity, all of them surrounded by the unaffected accessory germ leads us to describe the term "dente in dente". Such alteration is not previously described.

Anencephaly↗
PubMed1989

[Annual mass examinations to epidemiology of dysgnathisms of city children attending créches].

In a period of twelve years (1975-1986) the children of the group 2(6)/12-3 years old were investigated in the créches of Berlin-Mitte district. The frequency of dysgnathisms is constant nearly 50%. In contrary to this the frequency of caries has decreased continuously. It is necessary to treat habits as soon as possible. Unfavourable cases of habits strengthen the tendency to dysgnathisms. In cases the tendency can not removed by preventive management, the treatment of temporary teeth by functional orthodontic management should be required.

Adolescent↗
PubMed1989

Developmental orofacial deficits associated with multimodal cancer therapy: case report.

Multimodal cancer therapy for pediatric head and neck tumors may be associated with significant developmental orofacial morbidity. This report details these effects in a child (C.I.) diagnosed at 2.5 years of age with a rhabdomyosarcoma, primary to the left buccinator. This case is of interest as C.I. has an unaffected identical twin (D.I.) for comparative study. Both were assessed by comparing panoramic radiographs and lateral and frontal tracings of cephalometric radiographs obtained at 8.25 years of age. C.I. had multiple dental anomalies which included agenesis, ectopia, crown malformation, and root malformation. Root malformation, ectopia, and agenesis were restricted to the left dentition, whereas crown malformation was noted bilaterally. C.I. had a generalized craniofacial skeletal hypoplasia relative to D.I. in all three planes, growth defects were greater on the side of the tumor, and the mandible was affected more than the nasomaxillary complex.

Anodontia↗
PubMed1989

[The physical end of a so-called sickle-shaped tooth].

The author had the unique opportunity of surgically exposing a socalled sickle-shaped tooth, righting and aligning it with an orthodontic appliance in a patient then aged 6 years and 9 months and extract this tooth 32 years and 7 months later. The history and further evolution of this patient suggest that the development of a socalled sickle-shaped tooth, which this patient no doubt had, need not necessarily involve a traumatic factor. The displacement of such a tooth as well as the curvature of its root, which was still evident in this patient, appeared to have a genetic basis.

Activator Appliances↗
PubMedDate not supplied

[Hallermann-Streiff syndrome].

Hallermann-Streiff syndrome is a second branchial arch defect with significant ophthalmologic, dental and craniofacial findings. These anomalies provide a difficult management and treatment situation for both the restorative dentist and orthodontist and maxillo-facial surgery.

Craniofacial Dysostosis↗
PubMedDate not supplied

[Biomechanics or orthodontic treatment of tooth rotation].

The correction of dental rotation associated with a lingual or buccal version is possible to obtain with the action of a force system that is: consistent or inconsistent. The authors investigated a mandibular right second bicuspid rotated positively with its distal surface to the buccal. They decided to correct this rotation by using a consistent force system formed by a force and a moment applied to center of resistance (long axis in the occlusal view) and in lingual direction. It's possible to obtain in a consistent force system with the utilization of a straight wire or a "cantilever beam". The Authors decided to correct this rotation by using a cantilever beam of 017x025 wire with a vertical loop hooked over a heavier 021x025 wire between the first and the second molars. With an inconsistent system it's necessary to include a box loop so it is possible to make a variation and insert the wire from teh anterior or posterior just to obtain a consistent force system.

Biomechanical Phenomena↗
PubMed1989

[A case of a so-called congenital tooth appeared in maxilla].

The congenital teeth are not only classified by Massler et al. as a natal tooth that has erupted at birth and a neonatal tooth that erupts at neonatal period, but also divided into a normal deciduous tooth and a supernumerary tooth. The congenital teeth are mostly found in the mandibular anterior region, but extremely rare in other regions. The authors met a rare case, that had a so-called congenital tooth in the maxillary anterior region, which was a supernumerary and fused tooth. The case was a boy patient, 4 months of age, who visited the pedodontic clinic, of Ohu University Dental Hospital, with the complaint of ruber and swelling of the maxillary anterior gum pad, October 17th in 1986. By oral inspection of the dental radiogram and his past history, the authors found a odontoid material in the swelled gum pad and diagnosed it as a so-called congenital and supernumerary tooth. The tooth was extracted. The extracted tooth was investigated histopathologically. It had the v-shaped incisula at the middle of its edge, and seemed as if two teeth had coalesced. The serial preparations by the labio-lingual section showed no partition, such cementum as to divide the enamel, the dentin and the pulp near the incisula. Therefore it was diagnosed as fused tooth correctly. In the labial surface of the root formed about a third root length, the thickness of the cellular cementum was observed. It was considered as a physiological reaction to no support of the alveolar bone and to the excess mobility of the tooth. The prognosis after its extraction was good, and all normal deciduous incisors appeared in his mouth, 7 month later.

Fused Teeth↗
PubMed1977

[Microsymptoms as an indication for familial hypodontia, hyperdontia and tooth displacement].

Hitherto several micromanifestations could be recognized as signals of pathognomic etiological factors indicative of aplasia, or, better, as disposition to disorders of the odontogenetic organs. Such microsymptoms are reduction of size, especially observed in upper lateral incisors (peg-shaped teeth), delayed mineralization, and dystopia of tooth-germs. Our findings suggest that many further phenomena belong to the same group of micromanifestations such as supernumerary teeth, either of typical or atypical shape (mesiodentes), supernumerary cusps and roots, gemination and fusion of teeth, infraposition of deciduous molars with a tendency to inclusion, just as undermining resorption of the (upper) second deciduous molar caused by the first molar, and, last but not least, a large distance of the germ of the (lower) second molar from the first molar as well as retention of those teeth. Such micromanifestations are theoretically important as clues on the trail of hereditary and practically useful as indicators of hyper- and hypodontia and dystopias in the same patient or among his close relatives.

Anodontia↗
PubMed1989

[Evaluation of the therapeutic efficacy and tolerance of a new thiamine compound (benzoyloxymethylthiamine) in the treatment of postoperative pain symptomatology in odontostomatological surgery].

The therapeutic effectiveness of benzoyloxymethyl-thiamin in controlling post-operative pain in odontostomatological surgery has been examined. The double blind study used a placebo and concerned 100 patients subjected to avulsion of the third molar in dysodontiasis on an out-patient basis. The results point to the effectiveness of benzoyloxymethyl-thiamin in the symptomatic treatment of post-operative pain symptomatology both as regards its duration and intensity; the drug also proved to be very well tolerated and its administration was not accompanied by any unwanted side-effects.

Adult↗