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Biomedical subjects

S Taicher

Publications and source records attributed to S Taicher.

84 records · Page 5Linked to original sources
PubMed1981

Intercuspal contacts of the natural dentition in centric occlusion.

The location of occlusal contacts in the intercuspal position was recorded in 29 young adults, 18 to 20 years of age. All participants had Class I essentially normal occlusion. Dental impressions and wax registration were made in all participants. Occlusal registrations were made of the posterior teeth only on a U-shaped prosthetic frame. Three types of indentation were recorded. Perforation of the wax represented supracontact; a translucent area represented contact; and slight thinning of the wax represented near contact. All three types of indentation were considered as contacts. The most striking finding was the high frequency of contacts on the mandibular first molar, which occurred in more than 20.9% of all contacts recorded. Most of the contacts were on cusps; only a few were in central fossae and marginal ridge areas. A surprising finding was the predominance of supracontacts on the second molars when compared to the remains of the dentition. No logical explanation for this finding can be offered. Morphologically good occlusion did not imply maximum contacts since an ideal occlusal contact was not found in any of the participants. Only serial studies will show whether occlusal relationships are stable throughout life or constantly changing.

Adolescent↗
PubMed1980

Experimental transplantation of mature molar teeth with and without the supporting structures in mice.

Two types of dental isografts were implanted into the femoral bone of inbred mice: type A, encompassing mature maxillary molars including supporting structure and type B, consisting of the tooth alone. The isografts, together with their host tissues, were examined histologically beginning at day 1 and continuing until day 42 posttransplantation. In both types, the cellular components underwent necrosis with subsequent repopulation of the pulp and periodontal ligament of the graft. A new bony socket formed and partial resorption and ankylosis started on day 10 of transplantation. It is suggested that the host cells present in the periodontal ligament are responsible for the ankylosis and resorption of the tooth root surface.

Animals↗
PubMed1979

Odontoma in the subcondylar region.

An instance of a compound odontoma in the condylar process in a 24-year-old female is described. Location of odontomas in the coronoid or condylar processes were not reported. A hypothesis of migration of the third molar bud into the condylar region, an interfering local factor such as trauma or infection are suggested as aetiologic factors to the tumour in this case. Pre-operative radiographic localisation of the mass, are essential for treatment planning. An intra-oral approach was the treatment of choice.

Adult↗
PubMed1978

Cutaneous sinus tracts of dental origin.

The most common etiologic factor responsible for the intermittently suppurating cutaneous sinus tract about the face and neck is the extension of chronic infection of dental origin. Complete healing invariably follows the eradication of this source of infection. The presence of a cutaneous sinus tract about the face and neck should alert members of the profession to the necessity of routine dental examination including roentgenographic surveys of the teeth and jaws.

Adult↗