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Biomedical subjects

S W Guthua

Publications and source records attributed to S W Guthua.

7 recordsLinked to original sources
PubMed1992

A retrospective study of characteristics of impacted mandibular wisdom teeth in 110 patients treated in Nairobi, Kenya.

Analysis of 110 records of patients who presented with impacted mandibular 3rd molars was carried out to determine the frequency of occurrence of unilateral and bilateral impactions and their characteristics. 68.2% of the patients had bilateral impactions. Among the patients with bilateral impactions, 72% had mesioangular impaction occurring either bilaterally or in combination with other types of impaction. Furthermore, 38.7% mesioangular impactions were observed on the right and left sides in the patients with bilateral impactions. Among the patients with unilateral impactions 40.2% presented with mesioangular impaction, while 25.7% presented with distoangular impactions. While these observations support the general consensus regarding aetiology of mandibular 3rd molar impactions as being tooth-tissue discrepancy, the possible influence of other factors is suggested.

Adult↗
PubMed1992

Coping with embedded mandibular wisdom teeth in developing countries.

Despite low incidence of embedded mandibular wisdom teeth (third molars) among dental patients in developing countries (less than 100/1,000), the unfavourable patients:dentist ratios, the limited resources and low levels of public awareness render them an important problem to operators in these countries. Since the effectiveness with which they are removed largely depends on the age with respect to the stage of root formation, bone resilience and relationship with adjacent anatomical structures, and the dexterity of the operator, whenever possible, early removal is recommended. To minimise occurrence of non-operative complications that are costly to manage, primary health care workers have a vital role to play in raising levels of awareness and early referral for further evaluation. In view of the risks involved in the removal of these teeth and the small number of trained oral surgeons, continuing education to the dental practitioners, could improve their efficiency in the management of this condition.

Developing Countries↗
PubMed1991

Ameloblastoma after surgical removal of an impacted mandibular molar. A case report.

A case of an ameloblastoma diagnosed about 3 1/2 years after removal of an impacted mandibular 3rd molar is presented. The pre-operative radiographs, though poor in quality, showed an ill-defined radiolucency in relation to the tooth. This feature was not apparent to the examiners at the time of first presentation. Despite unfavourable working conditions in developing countries, a high level of suspicion should be maintained to avoid serious sequelae at a later stage.

Adult↗
PubMed1991

Mandibular fractures: an appraisal of the weak regions.

There is no uniformity in the role of different aetiologic factors in mandibular fractures in different cities of the world. Cultural and socioeconomic factors appear to have important contribution to the aetiologies. The condyle and the angle-body regions are most commonly fractured. There is no obvious relationship between aetiology and the site of fracture. Structural considerations suggest that differences between dentate (open section structure) and non dentate (closed section structure) regions are important determinants of fracture sites. Some modifications of standard teaching materials are recommended.

Africa↗
PubMed1990

Occurrence and characteristics of mandibular fractures in Nairobi, Kenya.

Analysis of 355 cases with fractures of the mandible indicated that 74.9% of the cases were due to interpersonal violence and 13.8% were caused by road traffic accidents. The men to women ratio was 8.4:1 and 75.5% of the fracture cases had single fractures while 24.5% had multiple fractures. In cases with a single fracture, the most commonly involved mandibular site was the body (42.2%). The angle of mandible was most frequently fractured (50.5%) in cases with multiple fractures.

Accidental Falls↗