Chrome Extension
WeChat Mini Program
Use on ChatGLM

A Comparative Investigation of Bone Surface after Cutting with Mechanical Tools and Er:YAG Laser

Lasers in surgery and medicine(2015)

Cited 69|Views21
No score
Abstract
Background and ObjectivesDespite of the long history of medical application, laser ablation of bone tissue became successful only recently. Laser bone cutting is proven to have higher accuracy and to increase bone healing compared to conventional mechanical bone cutting. But the reason of subsequent better healing is not biologically explained yet. In this study we present our experience with an integrated miniaturized laser system mounted on a surgical lightweight robotic arm.Study Design/Materials and MethodsAn Erbium-doped Yttrium Aluminium Garnet (Er:YAG) laser and a piezoelectric (PZE) osteotome were used for comparison. In six grown up female Gottingen minipigs, comparative surgical interventions were done on the edentulous mandibular ridge. Our laser system was used to create different shapes of bone defects on the left side of the mandible. On the contralateral side, similar bone defects were created by PZE osteotome. Small bone samples were harvested to compare the immediate post-operative cut surface.ResultsThe analysis of the cut surface of the laser osteotomy and conventional mechanical osteotomy revealed an essential difference. The scanning electron microscopy (SEM) analysis showed biologically open cut surfaces from the laser osteotomy. The samples from PZE osteotomy showed a flattened tissue structure over the cut surface, resembling the smear layer from tooth preparation.ConclusionsWe concluded that our new finding with the mechanical osteotomy suggests a biological explanation to the expected difference in subsequent bone healing. Our hypothesis is that the difference of surface characteristic yields to different bleeding pattern and subsequently results in different bone healing. The analyses of bone healing will support our hypothesis. Lasers Surg. Med. 47:426-432, 2015. (c) 2015 Wiley Periodicals, Inc.
More
Translated text
Key words
Bone surface analysis,Er:YAG laser,laser osteotomy,mechanical osteotomy,SEM
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined