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Biomedical subjects

K Fanibunda

Publications and source records attributed to K Fanibunda.

14 recordsLinked to original sources
PubMed2000

The relationship between accessory foramina and tumour spread on the medial mandibular surface.

The medial cortical surface of the mandible can be involved by tumour infiltration from the floor of the mouth. A detailed study of spread via accessory foramina through the edentulous alveolar crest has been previously undertaken, but no similar study has been carried out for the medial surface. In order to gain further appreciation of the mode of tumour spread, a study of the number and distribution of accessory foramina on the medial mandibular surface was performed on 89 mandibles. The number of foramina varied greatly from specimen to specimen. In the ascending ramus above the inferior dental foramen, 3 mandibles showed no foramina; the condylar section possessed the greatest proportion followed by the sigmoid and the coronoid. On the rest of the medial surface below the inferior dental foramen, all specimens showed at least 1 accessory foramen; the greatest concentration was in the middle third along the path of the inferior dental canal, followed by the upper third and the lower third section. Accessory foramina were repeatedly present at certain dedicated sites. The medial facing wall of the inferior dental foramen was found to be the commonest dedicated site (98.3%) followed by foramina on either side of the genial tubercles (71.9%), the digastric fossa (71.9%) and the median foramen above the genial tubercles (64%). The findings of this study are in keeping with the current observation that the lower border is least commonly involved in tumour spread. In view of the presence of accessory foramina along the inferior dental canal and especially on the medial facing wall of the inferior dental foramen, it is imperative to preclude tumour spread in this region prior to undertaking the conservative rim resection procedure. Medial to the symphysis the alveolar mucosa dips down almost to the level of the dedicated foramina in the vicinity of the genial tubercles. As a general rule the attached muscle forms a barrier to tumour spread except in the later stages, however, in irradiated mandibles resistance to spread has been previously reported to be diminished. Under these circumstances, it is possible that the numerous accessory foramina reported in this study could facilitate a direct pathway into the cancellous bone.

Adult↗
PubMed1999

Relationship between accessory foramina and tumour spread in the lateral mandibular surface.

The spread of tumour cells to the mandible has been well recognised and invasion of the edentulous alveolar ridge by tumour through accessory foramina has been documented. Tumour infiltration can also occur through the lateral cortical plate, but the number and distribution of accessory foramina on this surface has not been reported. Lateral surfaces of 89 mandibles were examined and accessory foramina which showed a direct communication with the underlying cancellous bone were charted. It was found that the number of accessory foramina varied greatly from specimen to specimen. Only 70.8 % of mandibles showed foramina in the coronoid, sigmoid and condylar sections; of these 93.7 % exhibited foramina in the condylar section, 23.8% in the coronoid and only 19 % in the sigmoid section. This finding confirms that the current practice of conserving part of the ascending ramus posterior to the coronoid process following surgery is sound. Similarly in the rest of the lateral surface, foramina were present in the upper third section in 97.8 % of mandibles, 61.8% in the lower third and 58.4 % in the middle third sections. This result justifies the principle of rim resection in appropriate cases and the recognition that the alveolar section is commonly invaded before the rest of the body. The number and distribution of foramina may be of greater significance following radiotherapy when the foramina could provide multiple direct channels for invasion of tumour cells from the lateral surface to the medulla.

Humans↗
PubMed1998

The management of thermomechanically compacted gutta percha extrusion in the inferior dental canal.

Endodontic material inadvertently forced into the inferior dental canal during root-canal therapy can cause damage to the underlying nerve. The effect of toxic filling materials on nervous tissues has been well publicised, however, the thermal and pressure changes produced by chemically bland materials has not been adequately highlighted. In the case reported, thermoplasticised gutta percha was inadvertently introduced into the canal during endodontic treatment of a lower molar. Factors affecting the outcome are discussed and guidelines are presented for the management of such a case with reference to surgery against observation.

Adult↗
PubMed1998

Are the features of ankyloglossia limited to the lingual fraenum?

A 16-year-old male patient presented with ankyloglossia accompanied by a complaint of forceful spurting of saliva from the mouth and a unilateral swelling in the submandibular region. Following surgical relief of the ankyloglossia, the spurting of saliva had virtually ceased and the submandibular swelling disappeared without recurrence.

Adolescent↗
PubMed1997

Cemento-ossifying fibroma of the mandible.

Cemento-ossifying fibromas are normally slow-growing, benign lesions. A cemento-ossifying fibroma occurring in a 25 year old female is presented with clinical features of a rapidly enlarging tumour within a period of less than three years. Radiolucent areas with a short history of rapid enlargement should be subjected to pathological investigation prior to definitive surgery so that the appropriate treatment may be undertaken.

Adult↗
PubMed1997

Calcified stylohyoid ligament: unusual pressure symptoms.

Two previously unreported clinical features, namely obstruction of the submandibular salivary gland and discomfort on yawning, were encountered in a 42-year-old male with gross calcification of the stylohyoid ligament. The diagnosis was confirmed on clinical grounds, routine radiography, sialography and CT scanning.

Adult↗
PubMed1995

Anatomical basis for clinical skills: the mandible.

A thorough knowledge of applied anatomy is essential for the success of surgical techniques: the operator uses this knowledge by taking advantage of recognized structures to aid a procedure or to avoid complications. Of all the facial bones, the mandible is the largest and toughest, and exploitation of its anatomy has lead to the development of better techniques for diagnosis and treatment. This article describes how this has come about.

Age Factors↗
PubMed1986

Polymorphic reticulosis with oral lesions: a case report.

Polymorphic reticulosis is a rare lymphoproliferative disorder with a predilection for the upper respiratory tract. An unusual case with palatal, labial and lingual lesions is described and the value of radiotherapy, cytotoxic and steroid therapy in such cases is discussed.

Adult↗