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Open AccessArticle

The Effect of Undersized Drilling on the Coronal Surface Roughness of Microthreaded Implants: An In Vitro Study

1
Department of Periodontology and Dental Implantology, School of Dental Medicine, Tel-Aviv University, P.O. Box 39040, Tel Aviv 6997801, Israel
2
Department of Oral Rehabilitation, School of Dental Medicine, Tel-Aviv University, P.O. Box 39040, Tel Aviv 6997801, Israel
*
Author to whom correspondence should be addressed.
Graduate student.
Appl. Sci. 2020, 10(15), 5231; https://doi.org/10.3390/app10155231
Received: 1 July 2020 / Revised: 26 July 2020 / Accepted: 26 July 2020 / Published: 29 July 2020
(This article belongs to the Special Issue Predictable Restorative Dentistry)
This in-vitro study assessed the effect of an underdrilling implant placement protocol on the insertion torque, implant surface temperature and surface roughness (Sa) topography of the cervical microthreads of implants. Three groups of 25 implants (3.75 mm × 10 mm) were placed in osteotomies prepared in an artificial bone disc with final diameters of 3.65 mm according to the manufacturer’s instructions and in osteotomies prepared in accordance with an underdrilling protocol with final drill diameters of 3.2 and 2.8 mm (groups D3.65, D3.2, D2.8, respectively). Implants were inserted at a constant rate of 30 rpm. The surface temperature of the implants was measured with a thermal camera and temperature amplitude (Temp-Amp) was calculated by subtracting the room temperature from the measured implant surface temperature. Upon implant retrieval, coronal surface topography was assessed using a Nanofocus µsurf explorer and compared to a set of 25 new implants (control group). The differences between groups were compared using one-way ANOVA (p < 0.05). Significantly higher insertion torque, surface temperature values and significantly smaller average Sa values were measured in the implants inserted in undersized preparations. The highest temperature, insertion torque and Temp-Amp values and the largest decrease in Sa were measured in the D2.8 group. The lowest values were measured in the D3.65 group. View Full-Text
Keywords: undersized; implants; surface; roughness; drilling undersized; implants; surface; roughness; drilling
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MDPI and ACS Style

Cohen, O.; Moses, O.; Gurevich, T.; Kolerman, R.; Becker, A.; Ormianer, Z. The Effect of Undersized Drilling on the Coronal Surface Roughness of Microthreaded Implants: An In Vitro Study. Appl. Sci. 2020, 10, 5231. https://doi.org/10.3390/app10155231

AMA Style

Cohen O, Moses O, Gurevich T, Kolerman R, Becker A, Ormianer Z. The Effect of Undersized Drilling on the Coronal Surface Roughness of Microthreaded Implants: An In Vitro Study. Applied Sciences. 2020; 10(15):5231. https://doi.org/10.3390/app10155231

Chicago/Turabian Style

Cohen, Omer; Moses, Ofer; Gurevich, Talia; Kolerman, Roni; Becker, Alina; Ormianer, Zeev. 2020. "The Effect of Undersized Drilling on the Coronal Surface Roughness of Microthreaded Implants: An In Vitro Study" Appl. Sci. 10, no. 15: 5231. https://doi.org/10.3390/app10155231

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