Ronald F. Carr

Soft tissue responses to hydroxylapatite particles of different shapes

Fifteen beagle dogs seven to 15 months of age had 0.5 g of hydroxylapatite in the form of sharp-edged particles (HA-1) or rounded particles (HA-2) implanted in buccal soft tissue pouches. Tissue specimens from each site were obtained at two weeks, six weeks, three months, and six months. A mild inflammatory response was seen at the implant sites with both particle shapes; however, inflammation resolved at a faster rate in the sites implanted with round hydroxylapatite particles.

Recurrent ameloblastic fibroma

Abstract Although there has not been a significant number of long-term follow-ups to determine the natural history of the adenoameloblastoma, the scarcity of reported recurrences relative to the number of cases reported is at least an indication that recurrence is unlikely. However, this cannot be said of the ameloblastic fibroma and, because of the small number of reports of this lesion in the literature, the present case, together with the recurrences reported by Thoma 5 and Huebsch and Stephenson, 6 represents a significant number at this time. Should the number of recurrences relative to the total number of cases be found in the future to increase, re-evaluation of methods of diagnosis and treatment will be needed. Only the study of additional cases will in time yield a more accurate assessment of the natural history of the ameloblastic fibroma.

Osteochondroma of the mandibular condyle. Report of a case with 10-year follow-up.

A case of osteochondroma of the mandibular condyle has been presented, along with a review of the features of this lesion. A consideration of immediate condylar replacement after benign tumor surgery of the condyle is discussed.

A comparison of the effects of strontium chloride and calcium chloride on alveolar bone

ConclusionsBoth strontium and calcium, in high local concentrations, stimulate bone formation. The newly formed bone is no more subject to osteoclastic attack than normal bone. The bone response to response to calcium in that the response is faster but of shorter duration. The response to both strontium and calcium is repetitive.

Giant cell tumor of the mandible

A case of giant cell tumor of the mandible is presented, with treatment and follow-up for two and a half years. Although the lesion had characteristics of giant cell granuloma described by Jaffe, its aggressive clinical behavior influenced the diagnosis and treatment. Prosthetic rehabilitation was accomplished with a mandibular staple bone plate placed through a bone graft.

Periodontal manifestations and treatment in a case of Sturge-Weber syndrome

A case of Sturge-Weber syndrome, uncommon in its intraoral extent, is presented. The pathologic process involved both the soft and osseous tissues of both the maxilla and mandible of the affected side. The first known histopathologic description of alveolar bone involvement is presented. The patients was treated by means of extractions and periodontal flap surgery on both an outpatient and an inpatient basis, with good results and no untoward sequelae. common clinical findings in Sturge-Weber syndrome and specific signs and symptoms manifested by this patient are discussed.

Postmortem Examination of Incinerated Teeth with the Scanning Electron Microscope

Fragments recovered from the burned wreckage of a gasoline truck and thought to be parts of teeth were confirmed as such after they were examined with a scanning electron microscope. The appearance of the fragments was compared with previously published descriptions of teeth which had been incinerated under laboratory conditions and also examined by scanning electron microscopy.

Identification via dental remains: Pan American Flight 759.

Pan American Flight 759 crashed on takeoff from New Orleans International Airport on 9 July 1982. One-hundred-and-fifty-four persons lost their lives making this the second worst air crash in the United States. A dental identification team was assembled and began working the next morning. Ninety-three victims were positively identified by dental means and twenty-three other victims had strong supporting dental evidence as to their identities. The organization, method used, planning, and problem resolution concerning the dental team for this crash are presented.

Computed Dental Radiography Used to Reproduce Antemortem Film Position

Visual comparison of conventional antemortem and postmortem dental radiographs is often included in forensic identification. Ten forensic cases employing dry mandibular and maxillary bones and a dry study skull were exposed using the CDR digital dental X-ray system developed by Schick Technologies, Inc. Exposures of 0.08s at 10 mA and 70 kVp were taken with an INTREX intraoral dental X-ray unit. Digital radiography has the ability to produce an image instantaneously, allowing an operator to retake an incorrectly aligned radiograph almost immediately. It gives the forensic scientist a simplified method for reproducing antemortem radiographic position more efficiently and often with greater accuracy than conventional radiography.

Squamous cell carcinoma of the tongue in a young woman. Report of a case with etiologic considerations.

An uncommon case of squamous cell carcinoma of the tongue in a young adult is presented. The lesion was physically related to a metallurgically flawed gold crown that was in place for 15 years. Detailed recording of findings and reporting of nontypical cases of oral cancer is suggested with a view to identification of etiologic factors.