scholarly journals Comparison between Osseo densification burs and osteotome technique for closed sinus lift in partially edentulous maxilla (clinical and radiological study)

2021 ◽  
Vol 23 (05) ◽  
pp. 392-411
Author(s):  
Dr. Ali Nahi Hamdi ◽  
◽  
Dr. Shehab Ahmed Hemd ◽  
Keyword(s):  
Primary Stability ◽  
Controlled Clinical Trial ◽  
Height Loss ◽  
Implant Stability ◽  
Implant Placement ◽  
First Choice ◽  
Posterior Maxilla ◽  
Atrophic Maxilla ◽  
Sinus Floor ◽  
Bone Height

Dental implants are considered the first choice to replace lost or non-restorable teeth. However, the posterior maxilla remains a challenge in its management because of the quality of bone in the posterior maxilla. Osseo densification (OD) concept has been proposed in the literature to improve primary implant stability, which is an important aspect of osseointegration. Densah bur is novel drills specially designed to enhance a bone density by Osseo densification, which in turn increases primary stability. This present study was conducted to assess crestal sinus floor elevation by osteotome in comparison to Densah bur in the posterior atrophic maxilla. This was a randomized controlled clinical trial conducted on 20 patients to evaluate available crestal bone height loss, implant stability after implant placement in healed posterior maxillary alveolar ridge, whole bone height, Schneiderian membrane trauma, and post-operative complication.

scholarly journals Paradigm Shift in the Management of the Atrophic Posterior Maxilla

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Rabah Nedir ◽  
Nathalie Nurdin ◽  
Paul Khoury ◽  
Marc El Hage ◽  
Semaan Abi Najm ◽  
...  
Keyword(s):  
Lateral Sinus ◽  
Efficient Treatment ◽  
Sinus Floor Elevation ◽  
Implant Placement ◽  
Single Crown ◽  
Posterior Maxilla ◽  
Atrophic Maxilla ◽  
Sinus Floor ◽  
Osteotome Sinus Floor Elevation ◽  
Bone Height

When the posterior maxilla is atrophic, the reference standard of care would be to perform sinus augmentation with an autologous bone graft through the lateral approach and delayed implant placement. However, placement of short implants with the osteotome sinus floor elevation technique and without graft can be proposed for an efficient treatment of clinical cases with a maxillary residual bone height of 4 to 8 mm. The use of grafting material is recommended only when the residual bone height is ≤4 mm. Indications of the lateral sinus floor elevation are limited to cases with a residual bone height ≤ 2 mm and fused corticals, uncompleted healing of the edentulous site, and absence of flat cortical bone crest or when the patient wishes to wear a removable prosthesis during the healing period. The presented case report illustrates osteotome sinus floor elevation with and without grafting and simultaneous implant placement in extreme conditions: atrophic maxilla, short implant placement, reduced healing time, and single crown rehabilitation. After 6 years, all placed implants were functional with an endosinus bone gain.

Stability Development of Immediately Loaded Hybrid Self-Tapping Implants Inserted in the Posterior Maxilla: 1-Year Results of a Randomized Controlled Trial

2017 ◽  
Vol 43 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Vladimir S. Todorovic ◽  
Miroslav Vasovic ◽  
Mia-Michaela Beetge ◽  
Andre W. van Zyl ◽  
Vladimir Kokovic
Keyword(s):  
Controlled Trial ◽  
Primary Stability ◽  
Implant Stability ◽  
Chemically Modified ◽  
Implant Placement ◽  
Early Results ◽  
Posterior Maxilla ◽  
Initial Drop ◽  
Modified Surface ◽  
Type 3

The objective of the present study was to elucidate stability development of immediately loaded hybrid self-tapping implants inserted in the posterior maxilla. Forty-eight hybrid self-tapping implants with a chemically modified surface (∅︀4.1; length: 8 mm) were inserted bilaterally in the maxillary first and second premolar and first molar sites of 8 patients. In each patient, both sides of the maxilla were assigned randomly to either immediate (IL) or early (EL) loading group. Implant stability was evaluated by means of resonance frequency analysis immediately after implant placement and after 1, 2, 3, 4, 5, 6, 12, 26, and 52 weeks. High values of primary stability were found in both groups (71.91 ± 6.52 implant stability quotient [ISQ] in IL group; 73.87 ± 6.5 ISQ in EL group), with significant differences between the groups at the different time points. Initial decrease in stability was observed between the first and fifth weeks in the IL group and between the first and third weeks for the EL group. In the IL group 1 implant was removed after 3 weeks due to lack of stability. Early results of this study showed the ability of hybrid self-tapping dental implants with a chemically modified surface to achieve sufficient primary stability and to maintain high values of secondary implant stability in bone type 3 and 4, even when loaded immediately. Minimal alterations in stability were observed for both investigated groups, but the EL group showed faster recovery after an initial drop in stability.

scholarly journals Different techniques in transalveolar maxillary sinus elevation: A literature review

2021 ◽  
Vol 13 (1) ◽  
pp. 35-42
Author(s):  
Ardeshir Lafzi ◽  
Fazele Atarbashi-Moghadam ◽  
Reza Amid ◽  
Soran Sijanivandi
Keyword(s):  
Maxillary Sinus ◽  
English Language ◽  
Hydraulic Pressure ◽  
New Techniques ◽  
Implant Placement ◽  
Posterior Maxilla ◽  
Piezoelectric Surgery ◽  
Sinus Floor ◽  
Bone Height ◽  
Implant Treatment

Dental implant treatment in the posterior maxilla encounters bone quality and quantity problems. Sinus elevation is a predictable technique to overcome height deficiency in this area. Transalveolar sinus elevation is a technique that is less invasive and less time-consuming, first introduced for ridges with at least 5 mm of bone height. Many modifications and innovative equipment have been introduced for this technique. This review aimed to explain the modifications of this technique with their indications and benefits. An exhaustive search in PubMed Central and Scopus electronic databases was performed until December 2020. Articles were selected that introduced new techniques for the transalveolar maxillary sinus approach that had clinical cases with full texts available in the English language. Finally, twenty-six articles were included. The data were categorized and discussed in five groups, including expansion-based techniques, drill-based techniques, hydraulic pressure techniques, piezoelectric surgery, and balloon techniques. The operator’s choice for transalveolar approach techniques for sinus floor elevation can be based on the clinician’s skill, bone volume, and access to equipment. If possible, a technique with simultaneous implant placement should be preferred.

scholarly journals A Minimally Invasive Technique for Short Spiral Implant Insertion with Contextual Crestal Sinus Lifting in the Atrophic Maxilla: A Preliminary Report

Healthcare ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 11
Author(s):  
Massimo Corsalini ◽  
Silvia D’Agostino ◽  
Gianfranco Favia ◽  
Marco Dolci ◽  
Angela Tempesta ◽  
...  
Keyword(s):  
Surgical Technique ◽  
Alveolar Bone ◽  
Primary Stability ◽  
Invasive Technique ◽  
Sinus Floor Elevation ◽  
Posterior Maxilla ◽  
Atrophic Maxilla ◽  
Sinus Floor ◽  
Short Spiral ◽  
Heterologous Bone Graft

The most recently reported techniques for the rehabilitation of the atrophic posterior maxilla are increasingly less invasive, as they are generally oriented to avoid sinus floor elevation with lateral access. The authors describe a mini-invasive surgical technique for short spiral implant insertion for the prosthetic rehabilitation of the atrophic posterior maxilla, which could be considered a combination of several previously described techniques based on the under-preparation of the implant site to improve fixture primary stability and crestal approach to the sinus floor elevation without heterologous bone graft. Eighty short spiral implants were inserted in the molar area of the maxilla in patients with 4.5–6 mm of alveolar bone, measured on pre-operative computed tomography. The surgical technique involved careful drilling for the preparation of implant sites at differentiated depths, allowing bone dislocation in the apical direction, traumatic crestal sinus membrane elevation, and insertion of an implant (with spiral morphology) longer than pre-operative measurements. Prostheses were all single crowns. In all cases, a spiral implant 2–4 mm longer than the residual bone was placed. Only two implants were lost due to peri-implantitis but subsequently replaced and followed-up. Bone loss values around the implants after three months (at the re-opening) ranged from 0 to 0.6 mm, (median value: 0.1 mm), while after two years, the same values ranged from 0.4 to 1.3 mm (median value: 0.7 mm). Clinical post-operative complications did not occur. After ten years, no implant has been lost. Overall, the described protocol seems to show good results in terms of predictability and patient compliance.

scholarly journals Osteotome-Induced Blood Clot and Subsequent Bone Formation with the Use of Collagen Sponge for Integration of Single Dental Implants into the Atrophied Posterior Maxilla: A Retrospective Follow-Up of 36 Implants after 5 to 13 years

2022 ◽  
Vol 2022 ◽  
pp. 1-8
Author(s):  
Stefano Volpe ◽  
Michele Di Girolamo ◽  
Paolo Pagliani ◽  
Sandro Zicari ◽  
Lars Sennerby
Keyword(s):  
Bone Formation ◽  
Maxillary Sinus ◽  
Bone Grafting ◽  
Collagen Sponge ◽  
Implant Placement ◽  
Posterior Maxilla ◽  
Second Surgery ◽  
Sinus Floor ◽  
Bone Height

Background. Atrophy of the posterior maxilla as a consequence of tooth loss and sinus pneumatization is a frequent condition encountered in the clinical practice. Prosthetic rehabilitation with implants in these patients often requires some kind of bone regeneration procedure to increase the bone volume. Aim. The aim of the present retrospective study is to analyze the survival and success rates of a series of implants placed in the atrophic posterior maxilla with a transcrestal osteotome procedure, without placing a bone grafting material. Materials and Methods. From 2006 to 2014, 36 dental implants (Neoss Ltd., Harrogate, UK) were inserted in 36 patients with at least 4 mm of bone below the maxillary sinus using transcrestal osteotome sinus floor elevation and placement of collagen sponge below the sinus membrane. ISQ measurements were made after implant placement and at abutment surgery after 4 to 6 months. The vertical bone height (VBH) was evaluated in intraoral radiographs taken prior to surgery and in radiographs from annual check-up appointments 5 to 13 years after implant placement. In addition, marginal bone loss (MBL) was evaluated. Results. One implant was lost after four years of prosthetic loading. The remaining 35 implants showed no complications and were loaded with single crowns after 4–6 months of healing. All 35 implants showed clinical success after 8.5 ± 2.8 years of prosthetic loading (from 5 to 13 years). The vertical bone height was 5.9 ± 1.4 mm at surgery, 9.7 ± 1.1 mm at second surgery after 4–6 months, and 8.3 ± 1.8 at the follow-up at 8.5 ± 2.8 years (from 5 to 13 years). The implant stability registered was 73.2 ± 6.2 ISQ at the surgery and 75.8 ± 3.9 at the second surgery after 4–6 months. Conclusions. The present long-term follow-up study showed that the crestal approach for sinus floor bone augmentation without additional bone grafting results in predicable bone formation and high implant survival. The osteotome technique is a valid alternative to the more invasive lateral window technique in single cases with a minimum of 4 mm of VBH below the maxillary sinus.

scholarly journals Implant Stability in the Posterior Maxilla: A Controlled Clinical Trial

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Raquel Zita Gomes ◽  
Mario Ramalho de Vasconcelos ◽  
Isabel Maria Lopes Guerra ◽  
Rute Alexandra Borges de Almeida ◽  
Antonio Cabral de Campos Felino
Keyword(s):  
Primary Stability ◽  
Controlled Clinical Trial ◽  
Insertion Torque ◽  
Success Rates ◽  
Implant Stability ◽  
Native Bone ◽  
Posterior Maxilla ◽  
Group A ◽  
Group B ◽  
Secondary Stability

Aim. To evaluate the primary and secondary stability of implants in the posterior maxilla. Methods. Patients were allocated into three groups: (A) native bone, (B) partially regenerated bone, and (C) nearly totally regenerated bone. Insertion torque (IT) and implant stability quotient (ISQ) were measured at placement, to evaluate whether satisfactory high primary stability (IT ≥ 45 N/cm; ISQ ≥ 60) was achieved; ISQ was measured 15, 30, 45, and 60 days after placement, to investigate the evolution to secondary stability. Results. 133 implants (Anyridge®, Megagen) were installed in 59 patients: 55 fixtures were placed in Group A, 57 in Group B, and 21 in Group C. Fifty-two implants had satisfactory high primary stability (IT ≥ 45 N/cm; ISQ ≥ 60). A positive correlation was found between all variables (IT, ISQ at t = 0, t = 60), and statistically higher IT and ISQ values were found for implants with satisfactory high primary stability. Significant differences were found for IT and ISQ between the groups (A, B, and C); however, no drops were reported in the median ISQ values during the healing period. Conclusions. The evaluation of the primary and secondary implant stability may contribute to higher implant survival/success rates in critical areas, such as the regenerated posterior maxilla. The present study is registered in the ISRCTN registry with ID ISRCTN33469250.

scholarly journals Accuracy and Feasibility of a Zero-Setup Implant Guide System Made of a Light-Cured Composite Resin with Simultaneous Flapless Sinus Augmentation: A Pilot Study

2021 ◽  
Vol 11 (17) ◽  
pp. 8085
Author(s):  
Jin-Young Park ◽  
Joo-Yeon Lee ◽  
Joo-Nyeon Kim ◽  
Jeong-Won Paik ◽  
Jung-Seok Lee ◽  
...  
Keyword(s):  
Pilot Study ◽  
Composite Resin ◽  
Controlled Clinical Trial ◽  
Implant Stability ◽  
Sinus Augmentation ◽  
Implant Placement ◽  
Surgical Template ◽  
Posterior Maxilla ◽  
Patient Reported ◽  
Time Accuracy

The aim of this study was to evaluate the accuracy and feasibility of flapless implant placement using a light-cured surgical template made of composite resin comprising dimethacrylate and diurethane, performed simultaneously with crestal sinus augmentation. This pilot study was a prospective, single-armed, controlled clinical trial. Four patients having an edentulous region in the posterior maxilla with 4 to 8 mm of residual ridge height were enrolled. Flapless fully-guided implant placement was performed using a zero-setup surgical template with simultaneous crestal sinus graft. Horizontal, vertical, and angular deviations of the placed implants from the planned positions were measured. Clinical observations were made, and implant stability was measured up to 3 months postoperatively. All four implants were placed and maintained successfully without complication. The mean deviations of the four implants were 1.27 and 1.85 mm horizontally at platform and apex, respectively, 0.84 mm vertically at apex, and 4.76° in angle. Satisfactory implant stability was obtained in all implants at placement and 3 months. Fully-guided implant placement and crestal sinus graft using a zero-setup surgical template can be a safe and feasible method with acceptable accuracy. A randomized controlled trial should be performed in the future to validate its clinical performance in terms of surgical time, accuracy, and patient-reported outcomes.

scholarly journals Comparative radiographic and resonance frequency analyses of the peri-implant tissue after dental implants placement using flap and flapless techniques: An experimental study on domestic pigs

2013 ◽  
Vol 70 (6) ◽  
pp. 586-594 ◽  
Author(s):  
Zoran Vlahovic ◽  
Branko Mihailovic ◽  
Zoran Lazic ◽  
Mileta Golubovic
Keyword(s):  
Bone Resorption ◽  
Resonance Frequency ◽  
Dental Implants ◽  
Dental Implant ◽  
Surgical Techniques ◽  
Primary Stability ◽  
Implant Stability ◽  
Domestic Pigs ◽  
Flap Technique ◽  
Implant Placement

Background/Aim. Flapless implant surgery has become very important issue during recent years, mostly thanks to computerization of dentistry and software planning of dental implants placements. The aim of this study was to compare flap and flapless surgical techniques for implant placement through radiographic and radiofrequency analyses. Methods. The experiment was made in five domestic pigs. Nine weeks following domestic pigs teeth extraction, implants were placed, on the right side using surgical technique flap, and flapless on the left side. Digital dental Xrays were applied to determine primary dental implant stability quality (ISQ). At certain intervals, not later than three months, the experimental animals were sacrificed, and just before it, control X-rays were applied to measure dental implants stability. Results. Radiographic analysis showed that peri-implant bone resorption in the first 4 weeks following placement implants with flap and flapless surgical techniques was negligible. After the 3 months, mean value of peri-implant bone resorption of the implants placed using flap technique was 1.86 mm, and of those placed using flapless technique was 1.13 mm. In relation to the primary dental implant stability in the first and second week there was an expected decrease in ISQ values, but it was less expressed in the dental implants placed using the flapless technique. In the third week the ISQ values were increased in the dental implants placed by using both techniques, but the increase in flapless implant placement was higher (7.4 ISQ) than in flap implant placement (1.5 ISQ). The upward trend continued in a 4- week period, and after 3 months the dental implant stability values in the implants placed using flap technique were higher than the primary stability for 7.1 ISQ, and in the implants placed using flapless technique were higher comparing to the primary stability for 10.1 ISQ units. Conclusion. Based on the results of radiographic and resonance frequency analyses it can be concluded that the flapless technique in surgical implants placemat, leads to better results.

scholarly journals Periotest Values of Implants Placed in Sockets Augmented with Calcium Phosphosilicate Putty Graft: A Comparative Analysis against Implants Placed in Naturally Healed Sockets

2014 ◽  
Vol 15 (2) ◽  
pp. 181-185 ◽  
Author(s):  
Lanka Mahesh ◽  
TV Narayan ◽  
Sagrika Shukla ◽  
Georgios Kostakis
Keyword(s):  
Comparative Analysis ◽  
Primary Stability ◽  
Implant Stability ◽  
Implant Placement ◽  
Healing Period ◽  
Calcium Phosphosilicate

ABSTRACT Aim To measure implant stability using periotest values of implants placed in sockets augmented with calcium phosphosilicate putty (CPS Putty) as compared with implant stability in naturally healed sockets. Materials and methods Twenty two sockets were implanted with CPS Putty immediately after extraction. The sockets were re-entered after a healing period at 5 to 6 months (average 5.3 months) for implant placement. Periotest values were recorded during implant insertion to assess primary stability. These were compared with the Periotest values of 26 implants placed in 22 patients, with naturally healed sockets. Result Periotest values were significantly lower in the grafted group, indicating better implant stability in sites grafted with CPS putty. Conclusion Implant stability seems to be significantly higher in sockets augmented using CPS putty when compared to nongrafted sites. This suggests that socket grafting with CPS putty may enhance the quality of available bone for implantation. How to cite this article Mahesh L, Narayan TV, Kostakis G, Shukla S. Periotest Values of Implants Placed in Sockets Augmented with Calcium Phosphosilicate Putty Graft: A Comparative Analysis against Implants Placed in Naturally Healed Sockets. J Contemp Dent Pract 2014;15(2):181-185.

scholarly journals New Implant Design with Midcrestal and Apical Wing Thread for Increased Implant Stability in Single Postextraction Maxillary Implant

2019 ◽  
Vol 2019 ◽  
pp. 1-4 ◽  
Author(s):  
Antonio Scarano ◽  
Bartolomeo Assenza ◽  
Francesco Inchingolo ◽  
Filiberto Mastrangelo ◽  
Felice Lorusso
Keyword(s):  
Cortical Bone ◽  
Dental Implant ◽  
Alveolar Bone ◽  
Primary Stability ◽  
Implant Design ◽  
Insertion Torque ◽  
Fixture Design ◽  
Implant Stability ◽  
Implant Placement ◽  
Immediate Placement

Background. The immediate placement of a dental implant could represent an option treatment for the rehabilitation of a postextractive missing tooth socket to replace compromised or untreatable teeth, with the advantage of single-session surgery. In this way, the anatomy of the alveolar bone defect, the preservation of the buccal cortical bone, and the primary stability of the fixture represent the critical factors that consent a precise implant placement. Objective. This case report describes a novel fixture design for postextractive alveolar socket immediate implant. Methods. Two patients (25 and 31 years old) were treated for postextractive dental implant placement to replace both central upper incisor teeth with four implants. The residual bone implant gap was not filled with graft or bone substitute. The restoration was provided following a standard loading protocol by a cement-sealed prosthetic abutment. Results. Clinically, all implants positioned showed an excellent insertion torque. No postoperative complications were reported. At 6 months of healing, the buccal cortical bone and the implant stability were present and well maintained. Conclusion. The evidence of this study allows us to underline the possible advantages of this new fixture design for postextractive implant technique.

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