Secondary stability of microthickness hydroxyapatite-coated dental implants installed without primary stability in dogs

2013 ◽  
Vol 25 (10) ◽  
pp. 1169-1174 ◽  
Author(s):  
Ui-Won Jung ◽  
Sungtae Kim ◽  
In-Kyeong Lee ◽  
Min-Soo Kim ◽  
Jung-Seok Lee ◽  
...  
Keyword(s):  
Dental Implants ◽  
Primary Stability ◽  
Secondary Stability

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 Effect of the lack of primary stability in the survival of dental implants

2017 ◽  
pp. 0-0 ◽  
Author(s):  
C Cobo-Vazquez ◽  
D Reininger ◽  
P Molinero-Mourelle ◽  
J Gonzalez-Serrano ◽  
B Guisado-Moya ◽  
...  
Keyword(s):  
Dental Implants ◽  
Primary Stability

Developing Stability of Posterior Mandibular Implants Placed With Osteotome Expansion Technique Compared With Conventional Drilling Techniques

2017 ◽  
Vol 43 (2) ◽  
pp. 131-138 ◽  
Author(s):  
Yen-Ting Lin ◽  
Adrienne Hong ◽  
Ying-Chin Peng ◽  
Hsiang-Hsi Hong
Keyword(s):  
Bone Density ◽  
Surgical Techniques ◽  
Primary Stability ◽  
Conventional Technique ◽  
Implant Stability ◽  
Implant Stability Quotient ◽  
Expansion Technique ◽  
The Stability ◽  
Conventional Drilling ◽  
Secondary Stability

Clinical decisions regarding the stability and osseointegration of mandibular implants positioned using the bone expansion techniques are conflicting and limited. The objective was to evaluate the stability of implants placed using 2 surgical techniques, selected according to the initial width of the mandibular posterior edentulous ridge, with D3 bone density, during a 12-week period. Fifty-eight implants in 33 patients were evaluated. Thirty-two implants in 24 patients were positioned using the osteotome expansion technique, and 26 fixtures in 17 patients were installed using the conventional drilling technique. The implant stability quotient values were recorded at weeks 0, 1, 2, 3, 4, 6, 8, 10, and 12 postsurgery and evaluated using analysis of variance, independent, and paired t tests. Calibrated according to the stability reading of a 3.3-mm diameter implant, the osteotome expansion group was associated with a lower bone density than the conventional group (64.96 ± 6.25 vs 68.98 ± 5.06, P = .011). The osteotome expansion group achieved a comparable primary stability (ISQb-0, P = .124) and greater increases in secondary stability (ISQb-12, P = .07) than did the conventional technique. A D3 quality ridge with mild horizontal deficiency is expandable by using the osteotome expansion technique. Although the 2 groups presented similar implant stability quotient readings during the study period, the osteotome expansion technique showed significant improvement in secondary stability. The healing patterns for these techniques are therefore inconsistent.

scholarly journals Biomechanics in dental implants

2021 ◽  
Vol 7 (3) ◽  
pp. 131-136
Author(s):  
Poonam Prakash ◽  
Ambika Narayanan
Keyword(s):  
Dental Implants ◽  
Fibrous Tissue ◽  
Primary Stability ◽  
Biological Tissues ◽  
Implant Design ◽  
Implant Fixation ◽  
Implant Surface ◽  
Bone Apposition ◽  
Functional Connection ◽  
Secondary Stage

Achieving primary stability in dental implants is crucial factor for accomplishing successful osteointegration with bone. Micro-motions higher than the threshold of 50 to 100 μm can lead to formation of fibrous tissue at the bone-to-implant interface. Therefore, osteointegration may be vitiated due to insufficient primary stability. Osseointegration is defined as a direct and functional connection between the implant biomaterial and the surrounding bone tissue. Osseointegration development requires an initial rigid implant fixation into the bone at the time of surgery and a secondary stage of new bone apposition directly onto the implant surface. Dental implants function to transfer the load to the surrounding biological tissues. Due to the absence of a periodontal ligament, its firm anchorage to bone, various forces acting on it and the presence of prosthetic components, they share a complex biomechanical relationship. The longevity of these osseointegrated implants depend on optimizing these complex interactions. Hence, the knowledge of forces acting on implant, design considerations of implant and bone mechanics is essential to fabricate an optimized implant supported prosthesis.

COMPARISON OF TWO DIFFERENT IMPLANT SITE PREPARATION TECHNIQUES: PIEZOSURGERY VS STANDARD DRILLING

2021 ◽  
Vol 31 (3) ◽  
pp. 201-205
Author(s):  
Abdulla Varoneckas ◽  
Rokas Poška ◽  
Rokas Gelažius
Keyword(s):  
Bone Loss ◽  
Success Rate ◽  
Primary Stability ◽  
Site Preparation ◽  
Bone Diseases ◽  
Osteotomy Site ◽  
Metabolic Bone Diseases ◽  
Dental Implantation ◽  
Crestal Bone Loss ◽  
Secondary Stability

Relevance of the problem. Over the years, dental implant placement has proven to be a routine and reliable procedure. Osteotomy site preparation has a significant impact on implantation success rate. Surgery using piezosurgery is used as an alternative method for osteotomy. Piezosurgery concept has proven to reduce mechanical and thermal tissue trauma. Aim. Compare clinical differences between piezosurgery (PS) and standard drilling (SD) in dental implantation. Materials and methods: A systematic review was based on the PRISMA guidelines. Search was carried out in electronic databases. Researched studies were observational, published less than 10 years ago, in English. Studies that involved immediate implantation or bone augmentation were excluded, as well as patients with metabolic bone diseases or using bisphosphonate therapy. Results. Regarding crestal bone loss, 3 out of 4 articles stated that there were no statistically significant differences between standard drilling and piezosurgery group. One study, however, disclosed that piezosurgery showed better preservation of crestal bone after 3 years. 5 studies measured primary stability and did not find any significant differences. Secondary stability, however, was significantly higher in the piezosurgery group at 2nd and 3rd months. 5 studies that measured the duration of surgeries reported longer osteotomy time for the piezosurgery group. Pain level on VAS scale, oppositely, was lower in piezosurgery group. Conclusion. In conclusion, piezosurgery can be considered as an alternative to standard drilling. In terms of success rate, crestal bone loss and primary stability, results seem to be very similar in both groups. Piezosurgery, although, seems to be advantageous achieving secondary stability and maintaining lower pain levels during the healing process.

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