Sinus augmentation and concomitant implant placement in low bone-density sites. A retrospective study on an undersized drilling protocol and primary stability

2017 ◽  
Vol 20 (2) ◽  
pp. 151-159 ◽  
Author(s):  
Paolo Arosio ◽  
Gian Battista Greco ◽  
Terry Zaniol ◽  
Giovanna Iezzi ◽  
Vittoria Perrotti ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Bone Density ◽  
Primary Stability ◽  
Sinus Augmentation ◽  
Implant Placement ◽  
Low Bone Density

scholarly journals PRF versus xenograft in sinus augmentation in case of HA-coating implant placement: A 36-months retrospective study

2021 ◽  
Vol 30 (6) ◽  
pp. 0-0
Author(s):  
Sebastian Dominiak ◽  
Ewa Karuga-Kuźniewska ◽  
Paweł Popecki ◽  
Paweł Kubasiewicz-Ross
Keyword(s):  
Retrospective Study ◽  
Sinus Augmentation ◽  
Implant Placement ◽  
Ha Coating

scholarly journals Associations among Primary Stability, Histomorphometric Findings, and Bone Density: A Prospective Randomized Study after Alveolar Ridge Preservation with a Collagen Cone

2020 ◽  
Vol 8 (4) ◽  
pp. 112
Author(s):  
Sigmar Schnutenhaus ◽  
Werner Götz ◽  
Jens Dreyhaupt ◽  
Heike Rudolph ◽  
Ralph G. Luthardt ◽  
...  
Keyword(s):  
Bone Density ◽  
Tooth Extraction ◽  
Randomized Study ◽  
Primary Stability ◽  
Collagen Membrane ◽  
Ridge Preservation ◽  
Alveolar Ridge ◽  
Implant Placement ◽  
Randomized Clinical Study ◽  
Alveolar Ridge Preservation

Background: The objective of this investigation was to examine whether determination of bone density (BD) with a cone beam computed tomography (CBCT) scan could help predict the primary stability (PS) of the implants and to investigate whether associations between the histomorphometric findings and the CBCT scan could be observed. Materials and methods: In this randomized clinical study, the efficacy of alveolar ridge preservation (ARP) with a combination of a collagen cone and a collagen membrane procedure after tooth extraction was investigated. CBCT scans were obtained after a healing period of 8 (±1) weeks. Subsequently, the CBCT scans were evaluated in terms of BD at different heights of the former socket. Eleven (±1) weeks after tooth extraction, implant placement was performed and PS was measured with resonance frequency analysis. Potential associations among the radiologically measured BD, the histomorphometric results, and the PS were analyzed. Results: No direct association was observed between the radiologically determined BD and the histomorphometric findings. No significant associations could be found between the BD and the PS. Conclusion: No significant associations were observed among the BD determined by the CBCT, the histomorphometric findings, and the PS.

Immediate Loading of Dental Implant After Sinus Floor Elevation With Osteotome Technique: A Clinical Report and Preliminary Radiographic Results

2010 ◽  
Vol 36 (6) ◽  
pp. 485-489 ◽  
Author(s):  
Mario Santagata ◽  
Luigi Guariniello ◽  
Raffaele Rauso ◽  
Gianpaolo Tartaro
Keyword(s):  
Bone Density ◽  
Dental Implant ◽  
Relevant Literature ◽  
Immediate Loading ◽  
Clinical Report ◽  
Sinus Augmentation ◽  
Implant Placement ◽  
Posterior Maxilla ◽  
Sinus Floor ◽  
Twist Drills

Abstract Edentulous ridges in the posterior maxilla are often compromised by reduced bone volume. This anatomic condition often limits dental implant placement of 10 mm in length without prior or simultaneous sinus augmentation. The osteotome technique is an alternative and conservative technique for sinus floor augmentation and immediate implant placement in the posterior region of the maxillary jaw. According to the relevant literature, the osteotome technique appears to be a predictable and safe method for augmenting bone at the sinus floor and to improve bone density and quality of the implant site sufficiently so that immediate loading is possible. A 46-year-old male patient was referred to the authors to replace the single upper premolar with an implant-supported crown restoration without interfering with the integrity and topography of the adjacent gingival tissues. Only one clinical study analyzed minimally invasive implant and sinus lift surgery with immediate loading. In that case report, the osteotomy was widened to its final diameter using a series of incrementally larger twist drills. In our clinical case, a series of incrementally larger diameter osteotomes improved bone density. This simplified treatment modality can make single tooth implant rehabilitation of the atrophic premolar maxilla region more accessible, and immediate loading is facilitated by improved bone density.

scholarly journals Management of Short Alveolar Bone with Implant Retained Splinted Crown

2019 ◽  
Vol 53 (6) ◽  
Author(s):  
Primanda Nur Rahmania ◽  
Bambang Agustono ◽  
Nike Hendrijantini ◽  
Muhammad Dimas Aditya Ari
Keyword(s):  
Bone Density ◽  
Maxillary Sinus ◽  
Alveolar Bone ◽  
Posterior Region ◽  
Implant Placement ◽  
Low Bone Density ◽  
History Of ◽  
Bone Height ◽  
Short Implant

Implant placement on maxillary posterior region has some limitations because of limited bone height, low bone density, and anatomical consideration involving the floor of the maxillary sinus. A 56-year-old male with a history of hypertension and stroke, consulted for edentulous in teeth 25 and 26 with limited bone height. A short implant for 26 (Ø 4.8 mm; 4 mm) and 25 (Ø 4.1 mm; 10 mm) were placed and splint crown was performed after 6 months.

scholarly journals Correlation between Primary, Secondary Stability, Bone Density, Percentage of Vital Bone Formation and Implant Size

2021 ◽  
Vol 18 (13) ◽  
pp. 6994
Author(s):  
Vasilena Ivanova ◽  
Ivan Chenchev ◽  
Stefan Zlatev ◽  
Eitan Mijiritsky
Keyword(s):  
Bone Density ◽  
Bone Formation ◽  
Linear Correlation ◽  
Bone Biopsy ◽  
Primary Stability ◽  
Implant Stability ◽  
Socket Preservation ◽  
Implant Placement ◽  
Significant Difference ◽  
Secondary Stability

Background: This study aims to evaluate whether there is a correlation between implant stability, bone density, vital bone formation and implant diameter and length. Methods: Ninety patients were enrolled in this study. They underwent a socket preservation procedure with allograft or PRF and after 4 months, a total of 90 implants were placed. CBCT scans were assigned prior to implant placement in order to assess the bone density. During the surgical re-entry, a bone biopsy was harvested with a trephine drill. Immediately after implant insertion, the primary stability was measured. The secondary stability was measured 4 months after implant placement. Results: Primary stability showed a significant positive linear correlation with bone density (r = 0.471, p < 0.001) as well as with percentage of new bone formation (r = 0.567, p < 0.001). An average significant association of secondary stability with bone density (rs = 0.498, p < 0.001) and percentage of newly formed bone (r = 0.477, p < 0.001) was revealed. The mean values of primary stability in all three implant sizes, regarding the diameter of the implants, were similar (narrow 67.75; standard 66.78; wide 71.21) with no significant difference (p = 0.262). The same tendency was observed for secondary stability (narrow 73.83; standard 75.25; wide 74.93), with no significant difference (p = 0.277). Conclusions: The study revealed a high correlation between primary and secondary implant stability, and bone density, as well as with the percentage of vital bone formation. Implant length and diameter revealed no linear correlation with the implant stability.

Socket preservation using xenograft does not impair implant primary stability in sheep: clinical, histological and histomorphometric study

2020 ◽  
Author(s):  
Yaniv Mayer ◽  
Ofir Ginesin ◽  
Hadar Zigdon-Giladi
Keyword(s):  
Bone Biopsy ◽  
Primary Stability ◽  
Insertion Torque ◽  
Socket Preservation ◽  
Histomorphometric Study ◽  
Implant Placement ◽  
High Bone ◽  
Delayed Implant Placement ◽  
Natural Healing

Implant primary stability, which depends mainly on the amount and quality of bone, is important for implant survival. Socket preservation aims to reduce bone volumetric changes following tooth extraction. This animal study aims to examine whether preserving a ridge by using xenograft impairs the primary stability of the implant. Eighteen artificial bone defects were prepared in four sheep (5mmØ and 8mm length).  Defects were randomly grafted with xenografts: Bio-Oss (BO), Bioactive Bone (BB), or left for natural healing (control). After 8 weeks, bone biopsy was harvested and dental implants installed. During installation, peak insertion torque (IT) was measured by hand ratchet, and primary stability by the Osstell method. Histomorphometric analysis showed a higher percentage of new bone formation in the naturally healed defects compared to sites with xenograft (control 68.66 ± 4.5%, BB 48.75 ± 4.34%, BO 50.33 ± 4.0%). Connective tissue portion was higher in the BO and BB groups compared to control (44.25 ± 2.98%, 41 ± 6%, and 31.33 ± 4.5, p&lt;0.05, respectively). Residual grafting material was similar in BO and BB (7 ± 2.44%, 8.66 ± 2.1 %, respectively). Mean IT and ISQ values were not statistically different among the groups. A positive correlation was found between IT and ISQ (r=0.65, p=0.00). In conclusion, previously grafted defects with xenograft did not influence primary stability and implant insertion torque in delayed implant placement. These results may be attributed to a relatively high bone fill of the defect (~50%) two months after grafting.

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