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Implant stability quotient

Stephan Christian Möhlhenrich, Kristian Kniha, Dirk Elvers, Nassim Ayoub, Evgeny Goloborodko, Frank Hölzle, Ali Modabber
The aim of this study was to investigate the influence of two different microvascular reanastomized bone transplants on primary (PS) and secondary stability (SS) of dental implants. Totally 96 implants (Bone Level, Institut Straumann AG, Basel, Switzerland) were inserted in fibula (n = 50) and iliac crest (n = 46) in mean of 97.7 SD 75.6 weeks after performing reconstructive surgery. For measuring PS and SS the resonance frequency (RFA) analysis was used in mesiodistal and vestibulo-oral direction to quantify the implant stability quotient (ISQ)...
September 28, 2016: Journal of Cranio-maxillo-facial Surgery
Agda Marobo Andreotti, Marcelo Coelho Goiato, Adhara Smith Nobrega, Emily Vivianne Freitas da Silva, Humberto Gennari Filho, Eduardo Piza Pellizzer, Daniela Micheline Dos Santos
The aim of this systematic review was to evaluate the relationship between two methods used to assess implant stability, investigating whether both provide similar implant stability assessments for the same clinical case. A literature search was conducted on MEDLINE-PubMed and Scopus databases, without limitation publication period, up to November 2015. The following key words were used, with associations among them: "dental implant", "dental implants", "Osstell", "resonance frequency analysis", "implant stability quotient", "ISQ", "Periostest", "Periotest value" and "PTV"...
October 21, 2016: Journal of Periodontology
Masahiro Wada, Yasutane Tsuiki, Tohru Suganami, Kazunori Ikebe, Motofumi Sogo, Ikuhisa Okuno, Yoshinobu Maeda
BACKGROUND: The aim of this study is to investigate the correlation between the thickness of the cortical bone or the voxel values that are obtained by cone beam CT (CBCT) and the insertion torque values (ITVs) or the implant stability quotient (ISQ) values. METHODS: A pig's ilium was used as the implant placement site. The implants used in this study were two kinds of diameters (3.8 mm, 5.0 mm) and two kinds of lengths (7.0 mm, 12.0 mm) having a general threadlike shape with a mechanically polished surface...
December 2015: Int J Implant Dent
Salah Huwais, Eric G Meyer
PURPOSE: It is essential to have sufficient bone bulk and density at the implant site in order to achieve good bone-to-implant contact and primary stability, which are crucial for osseointegration. A new osteotomy preparation technique was recently introduced that uses a bone preservation method that creates a layer of compacted bone along the surface of the osteotomy. The hypothesis of this study was that this novel technique would increase primary implant stability, bone mineral density, and the percentage of bone at the implant surface compared with drilling technique...
October 14, 2016: International Journal of Oral & Maxillofacial Implants
Barry P Levin
Different parameters can be measured during dental implant insertion to determine the primary stability of the implant. The purpose of this retrospective study was to investigate whether a correlation exists between immediate implant insertion torque value (ITV) and implant stability quotient (ISQ) in nonmolar sites. A total of 59 implants in 52 patients were placed into extraction sockets. ITV was recorded at surgery, and ISQ was recorded at surgery and at follow up. Implants with higher ITV and/or ISQ were evaluated at 6 to 8 weeks...
November 2016: International Journal of Periodontics & Restorative Dentistry
Marco Tallarico, Erta Xhanari, Milena Pisano, Giacomo De Riu, Antonio Tullio, Silvio Mario Meloni
PURPOSE: To test the hypothesis that there is no difference in clinical, radiographic and aesthetic outcomes positioning single post-extractive ultra-wide 7 mm-diameter implants or waiting 4 months to place implant, after molar extraction and the socket preservation procedure. MATERIAL AND METHODS: Patients requiring one implant-supported single restoration to replace a failed tooth in the molar region of both maxilla and mandible were selected. Patients were randomised according to a parallel group design into two arms: implant installation in fresh extraction sockets augmented with corticocancellous heterologous bone and porcine derma (group A) or delayed implant installation 4 months after tooth extraction and socket preservation using the same materials (group B)...
2016: European Journal of Oral Implantology
Jeffrey J McCullough, Perry R Klokkevold
INTRODUCTION: Available literature suggests there is a transient drop in implant stability from approximately week 0 to week 3-4 as a result of peri-implant bone remodeling as it transitions from a primary, mechanical stability to a secondary, biological stability. Research investigating the influence of macro-thread design on this process is scant. AIM: The specific aim of this study was to evaluate the role of macro-thread design on implant stability in the early post-operative healing period using resonance frequency analysis (RFA)...
October 3, 2016: Clinical Oral Implants Research
Lucas J Poort, Charlotte C Kiewiet, Jack P M Cleutjens, Ruud Houben, Frank J P Hoebers, Peter A W H Kessler
OBJECTIVES: The aim of this study was to compare the influence of implant surface treatment and irradiation dose on implant stability and osseointegration of 144 extraoral implants in irradiated frontal bone of minipigs. MATERIAL AND METHODS: 144 implants with 3 different surface treatments (machined, etched and HAVD-coated) were implanted in the frontal bone of 16 Göttingen minipigs. Three groups of four pigs received radiation with equivalent doses of 25, 50 and 70 Gy, and one group served as control...
August 31, 2016: Journal of Cranio-maxillo-facial Surgery
Damir Jelusic, Matthias L Zirk, Tim Fienitz, Darije Plancak, Ivan Puhar, Daniel Rothamel
OBJECTIVES: To compare a monophasic (100% ß-TCP) and a biphasic (60% HA and 40% ß-TCP) bone substitute material (BSM) regarding biocompatibility, osteoconductivity and implant stability using histological, radiological and resonance frequency analysis. MATERIAL AND METHODS: Sixty-seven sinus floor elevations were performed in 60 patients. One patient group (monophasic bone substitute [MBS], 30 patients, 32 sinuses) was augmented by the use of the monophasic material (Bioresorb(®) , Sybron Implant Solutions, Bremen, Germany), while the second group (biphasic bone substitute (BBS), 30 patients, 35 sinuses) received a biphasic material (Maxresorb(®) , Botiss Biomaterials, Berlin, Germany)...
September 29, 2016: Clinical Oral Implants Research
Hsiang-Hsi Hong, Adrienne Hong, Lan-Yan Yang, Wei-Yang Chang, Yi-Fang Huang, Yen-Ting Lin
BACKGROUND: Clinical conclusions in studying the stability and osseointegration of mandibular implants positioned using the bone expansion techniques are conflicting and limited. PURPOSE: The objective was to examine the implant stability quotient (ISQ) values of mandibular posterior dental implants with 4.1 mm diameter that inserted with osteotome bone expansion technique versus conventional drilling technique during a 12-week observation period. MATERIALS AND METHODS: Twenty-four implants with 4...
September 25, 2016: Clinical Implant Dentistry and related Research
Sergio A Gehrke, María P Ramírez-Fernandez, José Manuel Granero Marín, Marcos Barbosa Salles, Massimo Del Fabbro, José Luis Calvo Guirado
OBJECTIVE: The aim of this study was to compare, through biomechanical and histological analysis, the aluminium (AlO2) and titanium dioxide (TiO2) microparticles for blasting during the sandblasting acid surface treatment in titanium dental implants using a rabbit tibia model. MATERIALS AND METHODS: Forty-eight commercially available titanium dental implants were divided into two test groups (n = 24 per group): implants with surface treated by AlO2 followed by acid etching as control group (Con group) and implants with surface treated by TiO2 followed by acid etching as test group (Test group)...
September 24, 2016: Clinical Oral Implants Research
Daniele De Santis, Alessandro Cucchi, Giovanni Rigoni, Carlo Longhi, Pier Francesco Nocini
PURPOSE: Concerns have been expressed about the possibility of high insertion torque (IT) causing necrosis, impaired osseointegration, and crestal bone loss over time. The present study investigated the relationship between primary stability and implant success, including early and late maintenance of crestal bone levels. MATERIALS AND METHODS: Implants were placed in patients at three study centers. Every effort was made to achieve the highest possible primary stability, which was measured with IT and implant stability quotient (ISQ)...
September 2016: International Journal of Oral & Maxillofacial Implants
Taek-Ka Kwon, Hae-Young Kim, Jae-Ho Yang, Ulf Me Wikesjö, Jaebum Lee, Ki-Tae Koo, In-Sung Yeo
PURPOSE: Various advanced technologies have been designed to estimate dental implant stability, including insertion torque, implant damping using the Periotest, and resonance frequency analysis expressed in implant stability quotient units. This study aimed to establish the relationship between the estimates for these three techniques. MATERIALS AND METHODS: Bovine cortical bone blocks were trimmed to square shapes of precisely controlled thickness and density. Thereafter, 4-mm-diameter × 10-mm-long implants were placed in the bone blocks using 30-, 45-, and 60-Ncm insertion torques...
September 2016: International Journal of Oral & Maxillofacial Implants
Kyle Shiffler, David Lee, Mark Rowan, Tara Aghaloo, Joan Pi-Anfruns, Peter K Moy
OBJECTIVES: To quantitatively compare stability of dental implants with varying lengths, diameters, and intraoral locations. STUDY DESIGN: Retrospectively, 200 consecutive NobelReplace Tapered Groovy implants of varying lengths and diameters were evaluated via implant stability quotient readings at placement (T1) and follow-up (T2). Data were analyzed by analysis of variance and simple linear regression tests. RESULTS: Intraoral location was statistically significant at T1 and T2...
June 29, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
José Luis Calvo-Guirado, José E Maté-Sánchez de Val, Rafael Arcesio Delgado-Ruiz, Manuel Fernández Domínguez, Paulo Henrique Orlato Rossetti, Sergio A Gehrke
OBJECTIVE: The aim of this study was to evaluate a new design of the cervical portion of dental implant with the objective to increase the volume of peri-implant tissues in the crestal area. MATERIALS AND METHODS: Forty-eight tapered dental titanium implants with internal conical connection were implanted in healed alveolar sites of six dogs. Twenty-four conventional implants design (C1 implant) formed the control group, and 24 new implant design (V3 implant) formed the test group...
September 5, 2016: Clinical Oral Implants Research
Ho-Chyul Han, Hyun-Chang Lim, Ji-Youn Hong, Su-Jin Ahn, Ji-Young Han, Seung-Il Shin, Jong-Hyuk Chung, Yeek Herr, Seung-Yun Shin
PURPOSE: The aim of this study was to determine the influence of anatomical conditions on primary stability in the models simulating posterior maxilla. METHODS: Polyurethane blocks were designed to simulate monocortical (M) and bicortical (B) conditions. Each condition had four subgroups measuring 3 mm (M3, B3), 5 mm (M5, B5), 8 mm (M8, B8), and 12 mm (M12, B12) in residual bone height (RBH). After implant placement, the implant stability quotient (ISQ), Periotest value (PTV), insertion torque (IT), and reverse torque (RT) were measured...
August 2016: Journal of Periodontal & Implant Science
Aydin Gülses, Mustafa Ayna, Hakan Güçlü, Metin Sencimen, M Nabi Basiry, Matthias Gierloff, Yahya Açil
The aim of this study was to analyze the primary stability of BoneTrust Sinus implants (BTSIs), which are intended to enable higher primary stability by their special design with reduced thread section in cases of reduced vertical bone availability, in comparison with standard BoneTrust implants (SBTIs) in vitro. A bone window 3 cm in length, 4 cm in width, and 3 cm in depth, resembling the maxillary bone window of the lateral sinus wall with 4 mm of residual bone height, was prepared at the dorsal side of freshly slaughtered bovine ribs...
September 2016: International Journal of Periodontics & Restorative Dentistry
Marco Tallarico, Silvio Mario Meloni, Erta Xhanari, Milena Pisano, David L Cochran
The aim of this study was to evaluate clinical and radiologic outcomes of a novel device that allows simultaneous hydraulic sinus membrane elevation, bone grafting, and implant placement. A sample of 18 consecutive participants with severe atrophy of the posterior maxilla underwent transcrestal elevation of the sinus membrane and implant placement. At the 6-month follow-up, the following parameters were assessed: implant success, any complications, marginal bone loss (MBL), three-dimensional (3D) graft measurements, implant stability quotient (ISQ), and graft density...
August 24, 2016: International Journal of Periodontics & Restorative Dentistry
Jeong-Kui Ku, Yang-Jin Yi, Pil-Young Yun, Young-Kyun Kim
BACKGROUND: The prognosis of wide implants tends to be controversial. While wider implants were initially expected to result in a larger osseointegration area and have higher levels of primary stability, they were reported to have a relatively high rate of failure. The clinical outcome of ultrawide implants of more than 6 mm in diameter was evaluated through a retrospective study. METHODS: The investigation was conducted on patients who had received ultrawide implant (≥6 mm diameter) placements in Seoul National University Bundang Hospital from January 2008 to December 2013...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
Eylem Ayhan Alkan, Gülay Tüter, Ateş Parlar, Ayşegül Yücel, Bülent Kurtiş
OBJECTIVES: This study compares peri-implant crevicular fluid (PICF) prostaglandin E2 (PGE2) levels, clinical parameters and implant stability quotient (ISQ) values around implants placed in augmented extraction sockets. MATERIALS AND METHODS: The sockets (24 in total) were randomly augmented using either EMD or Bio-Oss Collagen. Implant placements were performed after three months of healing. ISQ readings were evaluated at three points: at the time of surgery, at the first month and at the third month...
October 2016: Acta Odontologica Scandinavica
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