Clinical Assessment of Dental Implants Placed in Low-Quality Bone Sites Prepared for the Healing Chamber with Osseodensification Concept: A Double-Blind, Randomized Clinical Trial

Mello-Machado, Rafael Coutinho; Mourão, Carlos Fernando de Almeida Barros; Javid, Kayvon; Ferreira, Henrique T.; Montemezzi, Pietro; Calasans-Maia, Mônica Diuana; Senna, Plínio Mendes

doi:10.3390/app11020640

Cited by 12 publications

(17 citation statements)

References 49 publications

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“…The neovascularization was evaluated using the scores system from ISO 10993-6/2016: no capillary proliferation (0); minimal capillary proliferation, focal 1-3 buds (1); groups of 4-7 capillaries with supporting fibroblastic structure (2); broad band of capillaries with supporting structures (3); extensive band of capillaries with supporting fibroblastic structures (4). The values are presented as median ± confidence interval (n = 5).…”

Section: Resultsmentioning

confidence: 99%

“…All previous animal studies aimed to investigate the bone-implant contact and bone area fraction occupancy at different time points and macro/micro geometries. Furthermore, two clinical trials 4,39 aimed to compare the insertion torque and implant stability of implants placed via OD and SCD. The present study evaluated for the first-time histological events around nanohydroxyapatite dental implant coating using different drilling techniques.…”

Section: Discussionmentioning

confidence: 99%

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Osseodensification enables bone healing chambers with improved low-density bone site primary stability: an in vivo study

Mello-Machado

Sartoretto

Granjeiro

et al. 2021

Sci Rep

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Primary implant stability is a prerequisite for successful implant osseointegration. The osseodensification technique (OD) is a non-subtractive drilling technique that preserves the bone tissue, increases osteotomy wall density, and improves the primary stability. This study aimed to investigate the hypothesis that OD, through a wider osteotomy, produces healing chambers (HCs) at the implant-bone interface without impacting low-density bone primary stability. Twenty implants (3.5 × 10 mm) with a nanohydroxyapatite (nHA) surface were inserted in the ilium of ten sheep. Implant beds were prepared as follows: (i) 2.7-mm-wide using subtractive conventional drilling (SCD) technique (n = 10); (ii) 3.8-mm-wide using an OD bur system (n = 10). The sheep were randomized to two groups, with samples collected at either 14-(n = 5) or 28-days (n = 5) post-surgery and processed for histological and histomorphometric evaluation of bone-implant contact (BIC) and bone area fraction occupancy (BAFO). No significant group differences were found with respect to final insertion torque and implant stability quotient (p > 0.050). BIC values were higher for SCD after 14 and 28 days (p < 0.050); however, BAFO values were similar (p > 0.050). It was possible to conclude that the OD technique allowed a wider implant bed preparation without prejudice on primary stability and bone remodeling.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Osseodensification enables bone healing chambers with improved low-density bone site primary stability: an in vivo study

Mello-Machado

Sartoretto

Granjeiro

et al. 2021

Sci Rep

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“…Whereas the current study was a randomized controlled study that included a single implant system with regular implant diameter and length and D3-D4 bone mineral density, this may explain the different results obtained in this study. Also, Mello-Machado et al [21], in a randomized clinical study, compared OD drilling with standard undersized drilling in D3-D4 bone, and They concluded that OD enabled the concept of a bone healing chamber in low-quality bone without affecting implant stability or success rates.…”

Section: Discussionmentioning

confidence: 99%

WITHDRAWN: Implant stability changes in dental implants installed by osseodensification and conventional methods: A randomized controlled study

Dayeh,

B.D.S.

2023

Preprint

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Purpose In this study, the osseodensification (OD) drilling technique was used to assess the impact of implant site preparation on implant stability changes during the osseous healing period, insertion torque (IT), and preparation time.Methods In this randomized controlled clinical study, a total of 20 patients received 40 dental implants (DI), which were divided into two groups at random: the first group (the study group), which received the implants using the OD drilling technique, and the second group (the control group), which received the implants using the conventional drilling technique. Prior to surgery, bone density was assessed by CBCT. The Osstell implant stability quotient (ISQ) was used to measure implant stability immediately following implant insertion as well as 6 and 12 weeks later.Results There was no statistically significant difference in primary stability between the groups (P-value 0.216). In contrast, at 6 weeks and 12 weeks postoperatively, the control group showed higher ISQ values (P-values 0.002 and 0.005, respectively). There was no significant difference in the (IT) between the groups (P-value 0.627). The preparation time was significantly longer in the study group compared to the control group (P-value 0.0001).Conclusion The OD drilling technique did not show a more favorable outcome regarding the implant stability changes, IT, and preparation time over that of the conventional approach and resulted in a significant drop in stability after 6 weeks postoperatively, making OD use for early loading questionable.

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“…In a recent randomized clinical trial [33] comparing OD instrumentation and undersized drilling protocol, the authors achieved 100% survival rates for both groups. Interestingly, the results showed that, even with a wider implant site preparation, the OD group reached installation torques higher than the undersized drilling group.…”

Section: Introductionmentioning

confidence: 99%

Effects of Osseodensification on Primary Stability of Cylindrical and Conical Implants—An Ex Vivo Study

Formiga

Silva

Ghiraldini

et al. 2023

JCM

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Primary stability is an important factor for dental implant success. In the past years, a new method for bone site preparation was introduced, named osseodensification (OD). OD produces a condensation of the trabecular portion of the bone, increasing bone-to-implant contact and primary stability. This study aims to compare the effect of OD in cylindrical and conical implants to conventional instrumentation. A total of forty implants, divided into four groups, were placed in porcine tibia: cylindrical conventional (1a), cylindrical OD (1b), conical conventional (2a) and conical OD (2b). Each implant was measured for implant stability quotient (ISQ), insertion torque (IT) and removal torque (RT). Group 2b showed the higher values for each of the evaluated parameters; groups 1b and 2b showed better results than 1a and 2a, respectively. Regarding the IT and RT, group 1b achieved higher values than group 2a, but not for ISQ. The inter-group comparison showed significant difference between groups 1a vs 2a, 1a vs 2b and 1b vs 2b for ISQ and 1a vs 1b and 1a vs 2b for RT analysis. OD resulted in improved ISQ, IT and RT of both cylindrical and conical implants.

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Clinical Assessment of Dental Implants Placed in Low-Quality Bone Sites Prepared for the Healing Chamber with Osseodensification Concept: A Double-Blind, Randomized Clinical Trial

Cited by 12 publications

References 49 publications

Osseodensification enables bone healing chambers with improved low-density bone site primary stability: an in vivo study

Osseodensification enables bone healing chambers with improved low-density bone site primary stability: an in vivo study

WITHDRAWN: Implant stability changes in dental implants installed by osseodensification and conventional methods: A randomized controlled study

Effects of Osseodensification on Primary Stability of Cylindrical and Conical Implants—An Ex Vivo Study

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