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01.01.2012 | Original Article

Effects of the Er,Cr:YSGG laser on bone and soft tissue in a rat model

verfasst von: Livia Rodrigues Perussi, Chaine Pavone, Guilherme José Pimentel Lopes de Oliveira, Paulo Sérgio Cerri, Rosemary Adriana Chierici Marcantonio

Erschienen in: Lasers in Medical Science | Ausgabe 1/2012

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Abstract

The purpose of this study was to investigate the histological changes that occur in rat soft and hard tissues after Er,Cr:YSGG laser surgery. Each of 20 rats was submitted to four procedures which were randomly distributed to the right and left sides of the animal: procedure 1 dorsal incision with a scalpel; procedure 2 dorsal incision with a 2.0-W Er,Cr:YSGG laser; procedure 3 skull defect created with a diamond bur; procedure 4 skull defect created with a 3.0-W Er,Cr:YSGG laser. The animals were killed 3, 7, 15 and 30 days after surgery, and histological examinations were performed. The histometric analysis of the bone defects was evaluated using an unpaired t-test. Initially, the dorsum showed more histological signs of repair following procedure 1, although similar healing responses following procedures 1 and 2 were seen on day 30 after surgery. By day 30 the bone formation observed following procedure 4 was much more evident than following procedure 3. The unpaired t-test identified significant differences in bone formation on day 30 (p = 0.01), whereas a greater bone percentage was seen following procedure 4 than following procedure 3 (79.96 ± 10.30% and 58.23 ± 9.99%, respectively). Thus, histological repair of the Er,Cr:YSGG laser wounds was similar to that of the scalpel wounds. However, skull defects created with the Er,Cr:YSGG laser showed greater bone formation than defects created with the bur. Within the limitations of this study, we can conclude that the Er,Cr:YSGG laser is a promising surgical instrument in vivo, particularly for bone surgery.

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Titel: Effects of the Er,Cr:YSGG laser on bone and soft tissue in a rat model
verfasst von: Livia Rodrigues Perussi
Chaine Pavone
Guilherme José Pimentel Lopes de Oliveira
Paulo Sérgio Cerri
Rosemary Adriana Chierici Marcantonio
Publikationsdatum: 01.01.2012
Verlag: Springer-Verlag
Erschienen in: Lasers in Medical Science / Ausgabe 1/2012
Print ISSN: 0268-8921
Elektronische ISSN: 1435-604X
DOI: https://doi.org/10.1007/s10103-011-0920-3

Springer Medizin

Abstract

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