Biomedical subjects

H Borrman

Publications and source records attributed to H Borrman.

27 records · Page 2Linked to original sources

PubMed1993

27 years of forensic odontology in Göteborg, Sweden.

The aim of this study was to analyze retrospectively all cases of forensic odontology during the period 1964-1990 in Göteborg. A total number of 281 cases were registered during a period of 27 years. The mean age of the victims was 39.5 years and 73 per cent of the deceased persons were men. The identification cases dominated (274). A definitive identity was established in 207 cases (75.6%) and the identity could not be determined in 34 cases (12.4%). The causes of death were also analyzed. The total number of burned victims; in buildings, boats or cars was 84. Eighty-one persons were submersed in water. There were 49 victims of mutilation due to traffic accidents. Twenty-two persons were found in the wood. Seventeen persons died in their homes or abroad and were not found immediately after death and therefore the relatives were not asked to identify the decreased. There was no information about the cause of death in 21 cases.

Adolescent↗

PubMed1992

Accuracy of dental registrations in forensic odontology among dental students.

The registration of dental characteristics in forensic work is crucial to the identification procedure and because of this, standardised recordings of dental characteristics should be applied. In order to improve accuracy in identification it is important to evaluate the types of errors that are made during the different steps of the procedure. Attempting to identify the most common interindividual variations, twelve dental students made recordings on excised, macerated jaws at the Department of Forensic Medicine in Göteborg as a part of the course in Forensic Odontology. The most common error was incorrect judgement of the extent of single restorations. Furthermore, the students had difficulty in identifying premolars and molars, especially in the mandible, confusing the two groups of teeth. This study emphasises the importance of carefully re-examining the postmortem dental findings by an experienced forensic odontologist before comparing them with the antemortem data.

Dental Records↗

PubMed1992

Accuracy in establishing identity in edentulous individuals by means of intraoral radiographs.

The aim of this study was to evaluate the degree of accuracy in establishing identity in edentulous individuals by using occlusal "ante- and postmortem" radiographs of the maxilla. Twelve examiners with the following background; six dental radiologists, four other specialists in dentistry and two dental students were asked to combine the radiographs. The results showed that six of the 12 observers were able to correctly establish identity for all 20 cases. Five of these observers were dental radiologists and one of them was a prosthodontist. The other specialists made 3-8 identifications. The senior and the junior dental students made two and four incorrect identifications. The findings from this study emphasise the importance of having more than one forensic specialist signing the identification form. The results also indicate that examiners well trained in oral radiology are able to determine a positive identity even in cases where the teeth are not present.

Forensic Dentistry↗

PubMed1992

The use of a bone lid to close the anterior wall defect after surgery in the maxillary sinus.

Surgery was performed in the maxillary sinus with restoration of the surgical defect in the anterior wall with a resutured bone-lid, in 12 patients with an average age of 45 years, the technique is described and evaluated clinically and radiographically (computed tomography). During the followup time of 1-4 years, the condition of the maxillary sinus was normalized. It is our opinion that the bone-lid technique for maxillary sinus surgery is useful, especially when good overview and access is necessary.

Adult↗

PubMed1991

The lateral periodontal cyst. A histopathological and radiographic study of 32 cases.

The lateral periodontal cyst is a developmental odontogenic cyst usually found in the premolar area of the lower jaw. The clinical, radiographic and histopathological features of 32 previously unreported lateral periodontal cysts were reviewed. In four cases the follow-up, which extended over several years, was also studied. Different theories of pathogenesis are discussed.

Adult↗

PubMed1990

Accuracy in establishing identity by means of intraoral radiographs.

The aim of this study was to evaluate the accuracy in establishing identity of individuals by means of different dental characteristics observed in "ante- and postmortem" bitewing radiographs. Three categories of individuals, based on dental therapy conditions, were considered: Group A) no therapy, Group B) simple therapy, and Group C) complicated therapy. Seven examiners were asked to combine "ante- and postmortem" radiographs and all reports were made on standard forms. The results show that all observers were able to determine identity for the cases in the simple therapy group. In contrast, three observers presented incorrect answers on two cases each in the nontherapy group. Further, two observers were unable correctly to determine identity for four cases in the complicated therapy group. Among a total of seven observers only two observers made no mistakes in any of the groups.

Forensic Dentistry↗

PubMed1989

Mandibular condyle morphology in relation to malocclusions in children.

Recent studies show that forces applied to the mandible during treatment with functional appliances and other orthodontic therapies produce changes in the TMJ. Specific malocclusions might also apply forces that can produce changes in the morphology of the TMJ. This study examined 104 orthodontic patients (44 males and 60 females) prior to treatment. The size and location of the condyle was determined on submento-vertex and tomographic films which was related to clinical findings including age, sex, malocclusion type, facial type, TMJ symptoms, tooth eruption sequence, crossbites and midline discrepancies. The medio-lateral width of the condylar head correlated positively with the patients age (p less than 0.001) and sex (p less than 0.001). Also the antero-posterior widths of the condyle were correlated with age (p less than 0.05). The condylar size in males was found to be greater than in females. Midline discrepancy significantly altered the increase in condylar size during growth. Transversel anomalies had a markedly greater influence on condylar growth compared to other characteristics of occlusion. The major change in condylar size during growth occurred in medio-lateral dimension as compared to the antero-posterior. In addition, the medio-lateral width was affected by midline discrepancy but not the antero-posterior width.

Adolescent↗

PubMed1989

Effective dose equivalent in dento-maxillofacial radiology.

The effective dose equivalent, HE, is discussed, with special emphasis on organs/tissues in the head and neck region, in dento-maxillofacial radiology. Risks, and weighting factors used in evaluations of HE are estimated for several tissues. Application of the method to two cases of full-mouth survey is demonstrated. This extension of the HE concept may stimulate further efforts to diminish exposure of various parts of the body to high dose radiation.

Humans↗

PubMed1989

Radiation doses and risks in dento-maxillofacial radiology.

Radiation doses and risks in dento-maxillofacial radiology are discussed. The basic processes of interaction between X-rays and living tissue are described and the quantities and units used in dose estimates are defined. Experimental values for doses absorbed by various organs/tissues, mainly in the head and neck region, are presented. The effects of proper collimation and shielding on dose values are demonstrated. Examples from the literature are given. The necessity for and methods for radiation protection in dento-maxillofacial radiography are discussed.

Bone Marrow↗