Izvorni znanstveni članak
Clinical and Radiographic Investigation of Bone Defects Following the Application of a Collagen Matrix
Mato Sušić
Pavel Kobler
Darko Macan
Irina Filipović-Zore
Željko Verzak
Davor Katanec
Sažetak
Large bone defects of the jaw have, so far, been filled with various types of bone implants, mainly synthetic nonresporative aloplastic implants (hydroxilapatite). As we have data only for two types of resorptive xenogenic bone implants, the purpose of this investigation was to examine resorption and osteoinductive capability of OSTEOVIT as a material for filling bone defects after removing large cysts (more than 20 mm in diameter) and after apicectomy of the tooth, where more than 1/3 of the tooth has no strong bone bases.
Osteovit is a collagen matrix of calf spongiose consisting of porous collagen purified of antigens, fats minerals, enzymes and all other noncollagen materials.
Forty-one patients, 9 female and 32 male aged 15-54 years were included in the investigation Nineteen of them had a clinical diagnosis of OPC and 22 a clinical diagnosis of cysts radicularis. All patients had a indication for apicectomy indicating that they had bone defects larger than 20 mm in diameter or destructive alveolus along more than 1/3 of the tooth root.
The results are shown on the basis of a clinical follow up and radiographic examination 6 months, 1,2,3 and 4 years after surgery. If, in some cases, a fistula was found during the postoperative followup the treatment was recorded as clinically unsuccessful. Success on the basis of radiographic criteria was also evaluated. First we classified defects into periapical (circumscriptive) and those along the tooth root and than divided the rays into two groups.
Unfortunately results for only for 22 patients were abtained and the others were excluded from the investigation because of incomplete follow-up.
With regard to total success, according to clinical criterium, 20/22 patients had good clinical diagnosis, i.e. 91%. By radiographic analysis we found complete healing in 13/22 patients or 59%. We also analysed results according to the localization of the periapical change. It was concluded that patients with circumscriptive changes were 88% clinically successful while those with a defect along the tooth root were 93% clinically successful.
According to the results of this investigation it can be concluded that OSTEOVIT is a very good resorptive material for filling bone defects and with OSTEOVIT it is possible to widen indication for apicotomy to include cases where more than 1/3 of the tooth has no strong bone base.
Ključne riječi
Hrčak ID:
11446
URI
Datum izdavanja:
15.9.2000.
Posjeta: 3.744 *