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Open AccessArticle

Intraosseous Temperature Change during Installation of Dental Implants with Two Different Surfaces and Different Drilling Protocols: An In Vivo Study in Sheep

1
Department of Oral & Maxillofacial Surgery and Oral Medicine, Faculty of Odontology, Malmö University, 20506 Malmö, Sweden
2
Department of Materials Science and Technology, Faculty of Odontology, Malmö University, 20506 Malmö, Sweden
3
Department of Biomaterials Science, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
*
Author to whom correspondence should be addressed.
J. Clin. Med. 2019, 8(8), 1198; https://doi.org/10.3390/jcm8081198
Received: 25 July 2019 / Revised: 3 August 2019 / Accepted: 6 August 2019 / Published: 11 August 2019
Background: The intraosseous temperature during implant installation has never been evaluated in an in vivo controlled setup. The aims were to investigate the influence of a drilling protocol and implant surface on the intraosseous temperature during implant installation, to evaluate the influence of temperature increase on osseointegration and to calculate the heat distribution in cortical bone. Methods: Forty Brånemark implants were installed into the metatarsal bone of Finnish Dorset crossbred sheep according to two different drilling protocols (undersized/non-undersized) and two surfaces (moderately rough/turned). The intraosseous temperature was recorded, and Finite Element Model (FEM) was generated to understand the thermal behavior. Non-decalcified histology was carried out after five weeks of healing. The following osseointegration parameters were calculated: Bone-to-implant contact (BIC), Bone Area Fraction Occupancy (BAFO), and Bone Area Fraction Occupancy up to 1.5 mm (BA1.5). A multiple regression model was used to identify the influencing variables on the histomorphometric parameters. Results: The temperature was affected by the drilling protocol, while no influence was demonstrated by the implant surface. BIC was positively influenced by the undersized drilling protocol and rough surface, BAFO was negatively influenced by the temperature rise, and BA1.5 was negatively influenced by the undersized drilling protocol. FEM showed that the temperature at the implant interface might exceed the limit for bone necrosis. Conclusion: The intraosseous temperature is greatly increased by an undersized drilling protocol but not from the implant surface. The temperature increase negatively affects the bone healing in the proximity of the implant. The undersized drilling protocol for Brånemark implant systems increases the amount of bone at the interface, but it negatively impacts the bone far from the implant. View Full-Text
Keywords: oral implants; osseointegration; implant installation; anchorage technique; histology; osteotomy; intraosseous temperature; in vivo study; finite element model oral implants; osseointegration; implant installation; anchorage technique; histology; osteotomy; intraosseous temperature; in vivo study; finite element model
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MDPI and ACS Style

Stocchero, M.; Jinno, Y.; Toia, M.; Ahmad, M.; Papia, E.; Yamaguchi, S.; Becktor, J.P. Intraosseous Temperature Change during Installation of Dental Implants with Two Different Surfaces and Different Drilling Protocols: An In Vivo Study in Sheep. J. Clin. Med. 2019, 8, 1198. https://doi.org/10.3390/jcm8081198

AMA Style

Stocchero M, Jinno Y, Toia M, Ahmad M, Papia E, Yamaguchi S, Becktor JP. Intraosseous Temperature Change during Installation of Dental Implants with Two Different Surfaces and Different Drilling Protocols: An In Vivo Study in Sheep. Journal of Clinical Medicine. 2019; 8(8):1198. https://doi.org/10.3390/jcm8081198

Chicago/Turabian Style

Stocchero, Michele; Jinno, Yohei; Toia, Marco; Ahmad, Marianne; Papia, Evaggelia; Yamaguchi, Satoshi; Becktor, Jonas P. 2019. "Intraosseous Temperature Change during Installation of Dental Implants with Two Different Surfaces and Different Drilling Protocols: An In Vivo Study in Sheep" J. Clin. Med. 8, no. 8: 1198. https://doi.org/10.3390/jcm8081198

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