Biomedical subjects

Yvonne Hodel

Publications and source records attributed to Yvonne Hodel.

3 recordsLinked to original sources

PubMed2004

Trauma to anterior implants.

The replacement of anterior teeth with an implant-supported restoration is recognized as an efficient and successful treatment. One of the rare complications that can occur with dental implants is the fracture of either the implant or the superstructure because of biomechanical overload or occlusal force. In contrast to the permanent dentition, there is limited information about how osseointegrated implants or the periimplantary bone behave after dental trauma. This article presents a case of trauma to anterior implants and illustrates the effects to the titanium screw and the surrounding tissue.

Accidental Falls↗

PubMed2004

[Bacterial contamination of bony particles from the bone collection trap].

Intraoral bony defects can be filled with bony particles that are collected in a titanium filter while drilling. The rinsing liquid is contaminated with blood and saliva which implies that the bony particles are also contaminated with bacteria. The aim of this study was to determine quantitatively and qualitatively the degree of this contamination. Over a period of three months bony particles were collected from 50 patients undergoing surgery. The bony particles were scraped off the filter, resuspended and incubated aerobically and anaerobically on human blood agar media. Colony forming units (CFU) were determined as well as the most common species of bacteria. All samples showed anaerobic and aerobic growth. After anaerobic incubation in 44 samples the number of bacteria was higher (38) or equal (six) to that after aerobic incubation. On average 435,000 CFU (aerobic) and 1,013,000 CFU (anaerobic) per sample were found. The most frequently identified bacteria belonged to Veillonella spp. in the anaerobic and to Streptococcus oralis in the aerobic cultures. In 43 samples black pigmented colonies were detected. There were only bacteria identified which are common in the oral cavity.

Adolescent↗

PubMed2002

[Late results of immediately loaded interforaminal implants].

The aim of this retrospective study was to evaluate the late results of immediately loaded implants in the interforaminal area of edentulous mandibles treated with implant-supported overdentures. the study initially included 44 patients who received a total of 176 ITI implants (4 interforaminal implants per patient) of which 233 patients with 89 implants were controlled (drop out of 21 patients). Immediately after the operation a bar was fixed to the implants and loaded with a retained overdenture. The patients were followed from a minimum of 8 to a maximum of 18 years (average of 12.2 years). Three implants were lost. Five implants didn't pass the criteria of success. The results of this study show that the success rate of immediately loaded implants in the interforaminal region is similar to secondarily loaded implants. According to these data, the often demanded healing phase of four months is not necessary.

Adult↗