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Implant stability quotient

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https://www.readbyqxmd.com/read/28806591/immediate-mechanical-stability-of-threaded-and-porous-implant-systems
#1
Do-Gyoon Kim, Yong-Hoon Jeong, Hua-Hong Chien, Amanda M Agnew, Jin Whan Lee, Hai Bo Wen
BACKGROUND: Primary stability of a dental implant system is an essential factor to maintain its long-term success. Thus, the objective of this study was to examine whether primary stability is different between threaded and porous dental implant systems placed in artificial bone blocks and human cadaveric mandibular bone. MATERIALS AND METHODS: Forty-two threaded and 42 highly porous dental implants were placed in artificial polyurethane bone foams with 7 different thicknesses (3...
August 5, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28791294/the-use-of-cone-beam-computed-tomography-in-assessing-the-insertion-of-bone-conduction-hearing-implants
#2
Tim George Ate Calon, Martin Lars Johansson, Elske Larissa van den Burg, Anna Maria Louisa Janssen, Marc van Hoof, Robert Jan Stokroos
OBJECTIVE: This study aimed to compare postoperative cone beam CT (CBCT) imaging to implant stability quotient (ISQ) measurement and direct caliper measurements as a suitable technique to assess bone conduction hearing implant (BCHI) seating and insertion depth. METHODS: In vitro, BCHIs were completely (n = 9) and partially inserted (n = 9) in bone blocks of different densities and subsequently scanned. Scans were processed using 3DSlicer 4.3.1 and Mathematica 10...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28791277/the-rate-and-stability-of-mandibular-block-bone-graft-in-recent-5%C3%A2-years
#3
Jong-Cheol Park, Yun-Ho Kim, Hong-Seok Choi, Jong-Shik Oh, Sang-Hun Shin, Yong-Deok Kim
BACKGROUND: The purposes of the present study were to compare implant stabilities of mandibular block bone graft and bovine bone graft and to evaluate influencing factors for implant stability in mandibular block bone (MBB) graft. METHODS: This retrospective study investigated 1224 cases and 389 patients treated by one surgeon in the Department of Oral and Maxillofacial Surgery of Pusan National University Dental Hospital (Yangsan, Korea) between January 2010 and December 2014...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28773005/implant-stability-of-biological-hydroxyapatites-used-in-dentistry
#4
Maria Piedad Ramírez Fernández, Sergio A Gehrke, Patricia Mazón, Jose L Calvo-Guirado, Piedad N De Aza
The aim of the present study was to monitor implant stability after sinus floor elevation with two biomaterials during the first six months of healing by resonance frequency analysis (RFA), and how physico-chemical properties affect the implant stability quotient (ISQ) at the placement and healing sites. Bilateral maxillary sinus augmentation was performed in 10 patients in a split-mouth design using a bobine HA (BBM) as a control and porcine HA (PBM). Six months after sinus lifting, 60 implants were placed in the posterior maxilla...
June 12, 2017: Materials
https://www.readbyqxmd.com/read/28770416/a-stepwise-under-prepared-osteotomy-technique-improves-primary-stability-in-shallow-placed-implants-a-preliminary-study-for-simultaneous-vertical-ridge-augmentation
#5
Daisuke Ueno, Kei Nakamura, Kousuke Kojima, Takeshi Toyoshima, Hideaki Tanaka, Kazuhiko Ueda, Kiyoshi Koyano, Toshiro Kodama
Simultaneous vertical ridge augmentation (VRA) can reduce treatment procedures and surgery time, but the concomitant reduction in primary stability (PS) of a shallow-placed implant imparts risk to its prognosis. Although several studies have reported improvements in PS, there is little information from any simultaneous VRA model. This study aimed to evaluate whether tapered implants with stepwise under-prepared osteotomy could improve the PS of shallow-placed implants in an in vitro model of simultaneous VRA...
August 2, 2017: Odontology
https://www.readbyqxmd.com/read/28744993/clinical-radiological-and-gene-expression-analyses-in-smokers-and-non-smokers-part-2-rct-on-the-late-healing-phase-of-osseointegration
#6
Shariel Sayardoust, Omar Omar, Ola Norderyd, Peter Thomsen
BACKGROUND: The mechanisms behind the impact of smoking on osseointegration are not fully understood. PURPOSE: To investigate the initial clinical and molecular course of osseointegration of different implants in smokers and non-smokers in a randomized controlled trial (RCT). MATERIALS AND METHODS: Smoking (n = 16) and non-smoking (n = 16) patients received 3 implant types: machined, oxidized, and laser-modified surfaces. Baseline bone biopsies were retrieved from the implant sites...
July 26, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28744757/six-implant-supported-immediate-fixed-rehabilitation-of-atrophic-edentulous-maxillae-with-tilted-distal-implants
#7
S Wentaschek, S Hartmann, C Walter, W Wagner
BACKGROUND: The aim of this retrospective study was to evaluate the treatment outcome of six Bredent blueSky™ implants (Bredent GmbH, Senden, Germany) immediately loaded with a fixed full-arch prosthesis (two tilted posterior and four axial frontal and premolar implants). METHODS: All 10 patients with atrophic edentulous maxillae being treated with a standardized procedure from 09/2009 to 01/2013, who had a follow-up of at least 3 years, were included. Sixty implants were placed to support 10 screwed prostheses...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28742164/relationship-between-implant-stability-on-the-abutment-and-platform-level-by-means-of-resonance-frequency-analysis-a-cross-sectional-study
#8
Frederico Santos Lages, Dhelfeson Willya Douglas-de-Oliveira, Guilherme Siqueira Ibelli, Fatimah Assaf, Thallita Pereira Queiroz, Fernando Oliveira Costa
Resonance frequency analysis (RFA) has become the main tool used to assess the osseointegration of dental implants. The objective of this study was to verify the relationship between the ISQ values with different prosthetic abutments and with the implant platform. The hypothesis was that ISQ values changes according to the abutment height. Twelve patients were included, whose contribution to the study was 31 dental implants (external hexagon connection implants, 4.1x10 mm). The temporary implant-supported crown and prosthetic components were removed and the following smartpegs were inserted, one at a time: type 1, in the implant platform (G1); type A3, in the microunit component with 1mm transmucosal height (G2) and type A3, in the microunit component with 5mm transmucosal height (G3)...
2017: PloS One
https://www.readbyqxmd.com/read/28710652/comparison-between-inflammation-related-markers-in-peri-implant-crevicular-fluid-and-clinical-parameters-during-osseointegration-in-edentulous-jaws
#9
Amália M Bielemann, Raissa M Marcello-Machado, Fábio Renato Manzolli Leite, Frederico Canato Martinho, Otacílio Luiz Chagas-Júnior, Altair Antoninha Del Bel Cury, Fernanda Faot
OBJECTIVES: The aim of this study is to improve the understanding of interleukin mechanisms during osseointegration to enhance the monitoring of implant failure and success. Clinical parameters, implant stability, and cytokine levels in peri-implant crevicular fluid (PICF) during early bone healing after implant placement were investigated. MATERIAL AND METHODS: Sixty narrow implants were placed in mandible anterior region of 30 edentulous patients (67.23 ± 7...
July 14, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28708918/the-influence-of-low-insertion-torque-on-primary-stability-implant-survival-and-maintenance-of-marginal-bone-levels-a-closed-cohort-prospective-study
#10
Michael R Norton
PURPOSE: The purpose of this study was to evaluate the impact of low insertion torque on primary stability and the short-term clinical outcome of single-tooth implants placed into healed ridges and fresh extraction sockets. MATERIALS AND METHODS: A cohort of n = 30 implants was self-selected on the basis that their insertion torque measured ≤ 20 Ncm. The cohort was closed with the follow-up set at 1 year. Resonance frequency analysis was evaluated in both mesiodistal (MD) and buccolingual (BL) directions at the time of implant insertion and at the time of restoration...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28689908/the-insertion-torque-depth-curve-integral-as-a-measure-of-implant-primary-stability-an-in%C3%A2-vitro-study-on-polyurethane-foam-blocks
#11
Danilo Alessio Di Stefano, Paolo Arosio, Giorgio Gastaldi, Enrico Gherlone
STATEMENT OF PROBLEM: Recent research has shown that dynamic parameters correlate with insertion energy-that is, the total work needed to place an implant into its site-might convey more reliable information concerning immediate implant primary stability at insertion than the commonly used insertion torque (IT), the reverse torque (RT), or the implant stability quotient (ISQ). Yet knowledge on these dynamic parameters is still limited. PURPOSE: The purpose of this in vitro study was to evaluate whether an energy-related parameter, the torque-depth curve integral (I), could be a reliable measure of primary stability...
July 6, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28631408/resonance-frequency-analysis-of-dental-implants-placed-at-the-posterior-maxilla-varying-the-surface-treatment-only-a-randomized-clinical-trial
#12
Marcelo M Novellino, Newton Sesma, Piero R Zanardi, Dalva C Laganá
BACKGROUND: Chemical modifications of the dental implant surface that improve the wettability result in a faster and better osseointegration. PURPOSE: The aim of this randomized clinical trial was to evaluate the implant stability quotient (ISQ) of implants with similar designs, treated with 2 surfaces, sandblasted acid-etched (SAE) and hydrophilic SAE, within the initial 16 weeks of healing. MATERIAL AND METHODS: A total of 64 implants (32 SAE-control group and 32 modified SAE-test group) with the same design, length, and diameter (conical and compressive, 4...
June 20, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28626763/implant-stability-in-the-posterior-maxilla-a-controlled-clinical-trial
#13
Raquel Zita Gomes, Mario Ramalho de Vasconcelos, Isabel Maria Lopes Guerra, Rute Alexandra Borges de Almeida, Antonio Cabral de Campos Felino
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...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28578374/in-vitro-comparison-of-primary-stability-of-two-implant-designs-in-d3-bone
#14
J González-Serrano, R Ortega-Aranegui, J López-Quiles
BACKGROUND: Primary stability (PS) is a key factor for implant survival rate and depends on implant design or bone quality. The aim of this study was to compare different thread designs implants, evaluating PS with periotest values (PV) and implant stability quotient (ISQ) values through resonance frequency analysis (RFA). MATERIAL AND METHODS: A total of 60 implants (Radhex®, Inmet-Garnick S.A., Guadalajara, Spain) were placed in freshly bovine ribs in vitro. Two designs were used: 30 tapered body with single thread design (PHI) and 30 tapered body with double thread design implants (PHIA)...
July 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28566674/a-stability-evaluation-of-a-novel-titanium-dental-implant-interconnected-porous-hydroxyapatite-complex-under-functional-loading-conditions
#15
Kazuya Doi, Takayasu Kubo, Shiho Kajihara, Yusuke Makihara, Hiroshi Oue, Yoshifumi Oki, Vittoria Perrotti, Adriano Piattelli, Yasumasa Akagawa, Kazuhiro Tsuga
The aim of this study was to evaluate the stability of implant/interconnected porous calcium hydroxyapatite complex (implant/IPCHA-complex) under functional loading. Implant/IP-CHA-complexes were placed into the mandibles of four Beagle-Labrador hybrid dogs (complex-group). On the other side, an implant was placed directly (control-group). To subject the loading, the animals were fed a hard diet throughout the loading phase of 5 months. The implant stability quotients (ISQs) and bone implant contact (BIC), and histological evaluations were performed...
May 30, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28557376/comparison-between-tapered-and-cylindrical-implants-in-the-posterior-regions-of-the-mandible-a-prospective-randomized-split-mouth-clinical-trial-focusing-on-implant-stability-changes-during-early-healing
#16
Janine Waechter, Marina de Matos Madruga, Luiz Carlos do Carmo Filho, Fábio Renato Manzolli Leite, André Ribeiro Schinestsck, Fernanda Faot
BACKGROUND: Companies affirm that tapered implants show adequate initial stability, while their installation in the lower arch is uncommon in clinical practice. PURPOSE: To compare the clinical outcomes of tapered and cylindrical implants and to study their effect on bone site characteristics and peri-implant health during healing. MATERIALS AND METHODS: The implant site dimensions were assessed by linear measurements using CBCT prior to the installation of 40 implants in the posterior mandible (20 tapered and 20 cylindrical)...
August 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28551316/impacts-of-3d-bone-to-implant-contact-and-implant-diameter-on-primary-stability-of-dental-implant
#17
Jui-Ting Hsu, Yen-Wen Shen, Chih-Wei Kuo, Ruei-Teng Wang, Lih-Jyh Fuh, Heng-Li Huang
BACKGROUND/PURPOSE: This study investigated the effects of three three-dimensional (3D) bone-to-implant contact (BIC) parameters-potential BIC area (pBICA), BIC area (BICA), and 3D BIC percentage (3D BIC%; defined as BICA divided by pBICA)-in relation to the implant diameter on primary implant stability, as well as their correlations were also evaluated. METHODS: Dental implants with diameters of 3.75, 4, 5, and 6 mm and artificial bone specimens were scanned by microcomputed tomography to construct 3D models for calculating pBICA, BICA, and 3D BIC%...
May 24, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28549683/findings-from-the-experience-with-the-punch-technique-for-auditory-osseointegrated-implants-a-retrospective-single-center-comparative-study
#18
Alfonso Bonilla, Carlos Magri, Eulalia Juan
OBJECTIVE: To compare the punch technique and linear incision with soft tissue reduction for the placement of auditory osseointegrated implants (AOI) and analyze results of osseointegration obtained with the punch technique as measured with the Implant Stability Quotient (ISQ). METHODS: Case review of 34 patients who received auditory osseointegrated implants between January 2010 and July 2015 and were divided into two groups according to the surgical technique: 18 with the punch technique (PT) and 16 with the linear incision technique (LI)...
May 23, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28545806/a-systematic-review-and-meta-analysis-of-long-term-studies-five-or-more-years-assessing-maxillary-sinus-floor-augmentation
#19
REVIEW
T Starch-Jensen, H Aludden, M Hallman, C Dahlin, A-E Christensen, A Mordenfeld
The objective was to test the hypothesis of no difference in long-term (≥5 years) implant treatment outcomes after maxillary sinus floor augmentation (MSFA) with autogenous bone graft compared to a mixture of autogenous bone graft and bone substitutes or bone substitutes alone. A MEDLINE (PubMed), Embase, and Cochrane Library search in combination with a hand-search of relevant journals was conducted. Human studies published in English between January 1, 1990 and October 1, 2016 were included. Nine studies fulfilled the inclusion criteria...
May 22, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28543806/effect-of-microthreads-on-coronal-bone-healing-of-narrow-diameter-implants-with-reverse-tapered-design-in-beagle-dogs
#20
Yun-Young Chang, Su-Hwan Kim, Keun-Oh Park, Jeong-Ho Yun
OBJECTIVES: The objective of this study was to investigate the effect of microthreads on the coronal bone healing of narrow-diameter implants with reverse-tapered design. MATERIAL AND METHODS: A total of 52 implants were classified into two groups according to presence or absence of coronal microthreads, the reverse-tapered narrow-diameter implant (RTN) group, and the reverse-tapered narrow-diameter implant with microthreads (RTNM) group. The implants were installed in split-mouth design in the edentulous mandible of six dogs...
May 22, 2017: Clinical Oral Implants Research
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