Ablation Precision and Thermal Effects of a Picosecond Infrared Laser (PIRL) on Roots of Human Teeth: A Pilot Study
| Autor: | R. J. Dwayne Miller, Nate Jowett, Michael Amling, Hartmut Schlüter, Reinhard E Friedrich, Maria Quade, Peter Kroetz, Felix K Kohlrusch, Jozef Zustin, Martin Gosau |
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| Rok vydání: | 2020 |
| Předmět: |
Cancer Research
Materials science Infrared Rays medicine.medical_treatment Pilot Projects General Biochemistry Genetics and Molecular Biology law.invention 03 medical and health sciences 0302 clinical medicine stomatognathic system law Thermal medicine Dentin Humans Pharmacology Laser ablation Lasers Far-infrared laser Laser Ablation stomatognathic diseases medicine.anatomical_structure 030220 oncology & carcinogenesis Picosecond Apicoectomy Laser Therapy Biomedical engineering Research Article |
| Zdroj: | In Vivo |
| ISSN: | 1791-7549 |
| Popis: | Background/aim Picosecond infrared laser (PIRL) was investigated regarding its possible therapeutic application in cutting dental roots. Materials and methods Extracted human teeth were processed in the root area by laser ablations followed by histological evaluation. Dentin adjacent to the cutting surface was evaluated morphometrically. Results PIRL produced clearly defined cutting boundaries in dental roots. At the bottom of the cavity, the ablation surface became slightly concave. Heat development in this scantly hydrated tissue was considerable. We attributed the excess heating effects to heat accumulation due to multiple pulse overlap across a limited scan range imposed by tooth geometries. Conclusion Defined areas of the tooth root may be treated using the PIRL. For clinical translation, it would be necessary to improve beam delivery to facilitate beam steering for the intended oral application (e.g. by using a fiber) and identify optimal repetition rates/scan speeds combined with cooling techniques to minimize accumulated heat within ablation cavities. |
| Databáze: | OpenAIRE |
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