The Accuracy of a Clinicin's Assessment of Insertation Torque at Implant Placement PDF Download
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Author: Britany Fabian Matin
Publisher:
ISBN:
Category :
Languages : en
Pages : 46
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Book Description
Background: Primary implant stability contributes to the success of dental implant placement and affects long-term function. Factors that contribute to the primary stability and osseointegration of a dental implant include the quality and quantity of bone present at the site of placement as well as the shape and surface treatment of the implants. There are numerous methods that assist the clinician in determining implant stability during placement and to confirm osseointegration after a period of healing. Their reliability to predict implant success, however, has not been proven. Torque measurements acquired during implant placement have been used as a method for assuming implant stability, as they provide valuable information about the local bone quality at the site of placement. The operator's tactile assessment of implant stability during placement is often used as the main indicator of primary implant stability, but limited data is available to validate the accuracy of this assessment. Methods: 100 implants placed in the periodontology clinic were analyzed for implant torque during placement. Assessment of the implant stability was first estimated by the clinician in Ncm and in bone density using the Leckholm and Zarb definition and was compared to the implant stability measured using a calibrated torque-measuring device. Other variables, such as years of surgical clinical training, implant system, and location of implant placement were also recorded. Results: There was no significant difference (P = 0.3348) between the estimated implant insertion torque when compared to the calibrated torque values. A significant difference in the ability to measure insertion torque was noted when implants were being placed in socket-converted sites (P = 0.0076), in the mandible (P = 0.0270), and when placing regular platform (P = 0.0433) or wide platform (P = 0.0156) implants. Conclusion: The trained clinician has the ability to accurately measure insertion torque of a dental implant during placement. Within study limitations, it may be concluded that the ability of a clinician to perform this task was effected by placement of a dental implant into a previously socket converted site, the placement of a dental implant into the mandible, and when using wider diameter implants.
Author: Britany Fabian Matin
Publisher:
ISBN:
Category :
Languages : en
Pages : 46
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Book Description
Background: Primary implant stability contributes to the success of dental implant placement and affects long-term function. Factors that contribute to the primary stability and osseointegration of a dental implant include the quality and quantity of bone present at the site of placement as well as the shape and surface treatment of the implants. There are numerous methods that assist the clinician in determining implant stability during placement and to confirm osseointegration after a period of healing. Their reliability to predict implant success, however, has not been proven. Torque measurements acquired during implant placement have been used as a method for assuming implant stability, as they provide valuable information about the local bone quality at the site of placement. The operator's tactile assessment of implant stability during placement is often used as the main indicator of primary implant stability, but limited data is available to validate the accuracy of this assessment. Methods: 100 implants placed in the periodontology clinic were analyzed for implant torque during placement. Assessment of the implant stability was first estimated by the clinician in Ncm and in bone density using the Leckholm and Zarb definition and was compared to the implant stability measured using a calibrated torque-measuring device. Other variables, such as years of surgical clinical training, implant system, and location of implant placement were also recorded. Results: There was no significant difference (P = 0.3348) between the estimated implant insertion torque when compared to the calibrated torque values. A significant difference in the ability to measure insertion torque was noted when implants were being placed in socket-converted sites (P = 0.0076), in the mandible (P = 0.0270), and when placing regular platform (P = 0.0433) or wide platform (P = 0.0156) implants. Conclusion: The trained clinician has the ability to accurately measure insertion torque of a dental implant during placement. Within study limitations, it may be concluded that the ability of a clinician to perform this task was effected by placement of a dental implant into a previously socket converted site, the placement of a dental implant into the mandible, and when using wider diameter implants.
Author: Andreas Parashis
Publisher: CRC Press
ISBN: 1482205416
Category : Medical
Languages : en
Pages : 175
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Book Description
Step-by-Step, Color Presentation of CGIP in Everyday Clinical Practice Computer-guided implant placement (CGIP) helps clinicians precisely implement a treatment plan and accurately place implants with the use of three-dimensional interactive imaging software. The software enables the direct link between anatomic interpretation, surgical and prosthetic treatment planning, and precise surgical execution. Bone preparation, in relation to the position, angle, and depth of the implant, is guided through computerized digital procedures and patient-specific surgical guides are developed to obtain the optimum result of the insertion of implants in predetermined, prosthetically acceptable positions. In color throughout, Clinical Application of Computer-Guided Implant Surgery covers the practical application of CGIP in a simple but detailed manner. Step by step, the book guides you on diagnosis and treatment planning, applying the specialized software, and using the necessary instruments and surgical guides. It also explores the strengths and weaknesses of CGIP and discusses literature related to the accuracy and clinical relevance of CGIP. Using numerous images from clinical cases, this color book helps you understand the treatment pathway, radiographic guides, virtual teeth, imaging techniques, and computer software used for CGIP. The authors—experts in periodontics and image-guided surgery—describe this new philosophy in a way that you can incorporate in your daily clinical practice.
Author: KArin Gisel Bedoya
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The use of short implants has gained popularity in the last years, since they have demonstrated high long-term survival and success rates. Also, they allow to reduce treatment time, morbidity and costs compared to bone regeneration procedures. Adequate primary stability and osseointegration are of extreme importance for long-term success of implant therapies.The aim of this study was to assess the relationship between insertion torque (primary stability), premature osseointegration failure and bone loss in patients with short morse taper implants after a 1-year follow-up.6-8mm of vertical bone and 6mm of horizontal bone, evaluated by tomographic examination, were included. A total of 20 morse taper 4 and 5mm in diameter and 5 and 6mm in length dental implants were installed in 11 patients. During implant placement procedures, insertion torques were recorded using a torque wrench and implants were left submerged. After 6 months, second-stage surgeries were performed, signs of premature osseointegration failures evaluated (absence of mobility), provisional crowns delivered and x-rays taken. 1-year after loading, control x-rays were taken. Bone levels were measured in x-rays from the implant platform to marginal bone using ImageJ 1.52d analysis software (National Institutes of Health, Bethesda, USA). Loading and follow-up x-rays were compared to assess the amount of bone loss. Data collected was analyzed using different statistical tests in the SPSS software (IBM Statistics version 21).The mean follow-up time after implant placement was 18.75 u00b1 7 months. Three implants were excluded (15%), two due to mechanical failures and one due to biological failures. Mean values for mesial bone measurements at loading (0.95u00b1 0.74) and at control x-rays (0.88 u00b1 0.83), and for distal bone levels at loading (1.12u00b1 0.92) and at control x-rays (1.08 u00b1 0.91) were used to calculate the amount of bone loss in mesial (0.146) and distal sites (0.326), respectively. Correlation values between insertion torque, mesial (r=-0.240) and distal bone loss (r=0.127) were calculated, as well as for insertion torque and osseointegration (r=0.291).Initial and follow-up values for bone loss showed no statistical differences, thus short implants showed stable bone levels after one year of installation. No relation between insertion torque and bone loss nor insertion torque and osseointegration was found, meaning that initial torque has no direct influence on the amount of bone loss and does not predict osseointegration failures. This study demonstrates the success of short implants in a short-term period.
Author: R.M. Natal Jorge
Publisher: CRC Press
ISBN: 1138026719
Category : Medical
Languages : en
Pages : 320
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Book Description
Dentistry is a branch of medicine with its own peculiarities and very diverse areas of action, which means that it can be considered as an interdisciplinary field. Currently the use of new techniques and technologies receives much attention. Biodental Engineering III contains contributions from 13 countries, which were presented at BIODENTAL 2014, the 3rd International Conference on Biodental Engineering (Póvoa do Varzim, Portugal, 22-23 June 2014). They provide a comprehensive coverage of the state-of-the art in this area, and address issues on a wide range of topics: – Aesthetics – Bioengineering – Biomaterials – Biomechanical disorders – Biomedical devices – Computational bio- imaging and visualization – Computational methods – Dental medicine – Experimental mechanics – Signal processing and analysis – Implantology – Minimally invasive devices and techniques – Orthodontics – Prosthesis and orthosis – Simulation – Software development – Telemedicine – Tissue engineering – Virtual reality Biodental Engineering III will be of interest to academics and others interested and/or involved in biodental engineering.
Author: Cheol-Ho Paik
Publisher: Elsevier Health Sciences
ISBN: 0723434026
Category : Medical
Languages : en
Pages : 268
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Book Description
1. INTRODUCTION: Case example About this book. -- 2. BRIEF REVIEW OF THE USE OF IMPLANTS IN ORTHODONTICS: Early research and development Later developments Miniscrews Terminology. -- 3. MINISCREW IMPLANTS: CONCEPTS AND CONTROVERSIES: Method of insertion: drill-free versus pre-drilling Primary stability: osseointegration versus mechanical interlocking Timing of loading: immediate versus delayed loading Loading characteristics and implant stability Secondary stability: bone remodeling around the miniscrew implant Miniscrew implant design and insertion and removal torque. -- 4. TERMINOLOGY, DESIGN FEATURES AND ARMAMENTARIUM: Terminology and design features Armamentarium. -- 5. ANATOMIC CONSIDERATIONS AND PLACEMENT/REMOVAL OF ORTHODONTIC MINISCREW IMPLANTS: Anatomic considerations Miniscrew implant placement and removal Post-placement instructions for the patient Timing of initial force application. -- 6. MINISCREW IMPLANT ANCHORAGE FOR ANTEROPOSTERIOR TOOTH MOVEMENT: Use of miniscrew implants for absolute anchorage when mesial movement of posterior teeth is not indicated Miniscrew implant anchorage for retraction of the entire dentition Miniscrew implant anchorage for molar distalization Miniscrew implant anchorage for anterior movement of posterior teeth. -- 7. MINISCREW IMPLANT ANCHORAGE FOR INTRUSION OF TEETH: Indications for intrusion Intrusion using miniscrews Design of the appliance Optimum force levels Occlusal and facial consequences of orthodontic intrusion Miniscrew implant anchorage for intrusion of the entire dentition Miniscrew implant anchorage for intrusion of posterior teeth Miniscrew implant anchorage for intrusion of anterior teeth. -- 8. MINISCREW IMPLANT ANCHORAGE FOR TRANSVERSE AND ASYMMETRIC TOOTH MOVEMENT: Transverse and asymmetric tooth movement. -- 9. OTHER USES OF MINISCREW IMPLANTS: Using miniscrew implants for intermaxillary fixation; Local tooth movements 10. COMPLICATIONS AND THEIR MANAGEMENT: Complications during and following insertion Complications during the loading period Complications during removal.
Author: Burlibasa M
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Background: Static computer-aided implant surgery is a predictable and widely accepted procedure, its accuracy being within the clinical acceptable range in the majority of clinical situations. Usually the 3D model of the bone and surrounding structures is obtained via cone beam computed tomography (CBCT) and the patientu2019s oral condition can be acquired conventionally and then digitalized using a desktop scanner - partially digital workflow (DW) or digitally with the aid of an intraoral scanner - full DW.The aim of the present pilot study is to compare the accuracy of a full digital workflow to partially digital workflow for a limited edentulous space (1 to 3 dental units) using an inspection tool software. Null hypothesis tested: full digital WF is more accurate comparing to partially DW.Materials and methods: The study was conducted in accordance with ethical principles including the World Medical Association Declaration of Helsinki, approved by the University Bioethical Committee, registered (ClinicalTrials.gov Identifier: NCT03814655) and written consent of each subject was obtained.Patients with Kennedy Class III partially edentulism, good general health, acceptance of dental implant treatment, acceptance of pre-operative CBCT, not requiring bone graft, not limited mouth opening were included.The full DW included: intraoral scan of the partially edentulous site, antagonists and occlusion registration, CBCT with radiopaque customized tray placed over the partially edentulous arch; merging files in R2 Gate planning software (Megagen, Korea), implant placement and digital scanning of implants position (.stl u2013 Stereolithography file).In the partially DW, digital impression was replaced with a conventional impression and poured casts are scanned with a desktop scanner.Results: 20 patients were enrolled in this prospective, pilot study and 38 implants were inserted using tooth-supported surgical templates and a flapless technique. Neither complications nor unexpected events occurred during implants insertion.22 implants were inserted using full DW. Inserted and planned implant position were compared using Geomagic Qualify 2013 software (3D Systems,USA).The mean 3D errors of implant positioning for the two insertion protocols were: 0.62mm (u00b10.42) entry point, 0.98mm (u00b10.73) at the implant apex, 2.1 (u00b10.35) angular deviation for full DW, respectively 0.68(u00b10.57), 1.02mm (u00b10.43) and 2.4 (u00b10.22) for partially DW. The t test for implant position showed no statistically significant differences (p > .05) in accuracy between full DW and partially DW, rejecting the null hypothesis tested.Conclusions and clinical implications: Within the limits of the present pilot study, the surgical template used has proved high accuracy for implant insertion, both in full and partially DW.The results of this study suggest that a full digital workflow for computer-guided implant surgery in partially edentulous patients is a reliable method and could be used in clinical situations.
Author: Miguel Peñarrocha-Diago
Publisher: Springer Nature
ISBN: 3030055469
Category : Medical
Languages : en
Pages : 383
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Book Description
This atlas, in which a wealth of illustrations are supported by clear explanatory text, offers an up-to-date and comprehensive overview of the immediate restoration of teeth and immediate functional loading when using different implant systems and surfaces in patients with single tooth loss or partial or complete edentulism. It provides guidance on all aspects of technique, including procedures for impression and measurement taking, and describes the surgical and prosthetic protocols applicable in various settings. The coverage encompasses the more advanced techniques used for immediate loading of implants placed in conjunction with grafting/augmentation procedures or in fresh extraction sockets, as well as immediate implant loading for mandibular and maxillary full-arch rehabilitation. This atlas will help dental students and practitioners to gain a sound understanding of immediate loading techniques, including their indications and limitations, and to apply them optimally in their practice. The atlas also shows and explains how to integrate a full digital workflow from the intraoral scanner to solve complex cases in a simple way.
Author: Ilser Turkyilmaz
Publisher: BoD – Books on Demand
ISBN: 9535117416
Category : Medical
Languages : en
Pages : 278
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Book Description
Implant dentistry has changed and enhanced significantly since the introduction of osseointegration concept with dental implants. Because the benefits of therapy became apparent, implant treatment earned a widespread acceptance. Therefore, the need for dental implants has caused a rapid expansion of the market worldwide. Dental implantology continues to excel with the developments of new surgical and prosthodontic techniques, and armamentarium. The purpose of this book named Current Concepts in Dental Implantology is to present a novel resource for dentists who want to replace missing teeth with dental implants. It is a carefully organized book, which blends basic science, clinical experience, and current and future concepts. This book includes ten chapters and our aim is to provide a valuable source for dental students, post-graduate residents and clinicians who want to know more about dental implants.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Computer-guided implant placement can be used throughout the entire implant surgery or on specific steps, such as only with the pilot drill. 15 patients were recruited and divided in 2 groups: in the control group, drilling and implant placement was performed using stereolithographic templates with fully guided sleeves;in the test group only the insertion of the pilot drill was guided by the template with 0.2 mm diameter sleeves, while the remaining drills and the implant insertion were performed freehand by the surgeon. NobelClinician software (Nobel Biocare) was used for implant planning and guide production. The implants included NobelActive and Bru00e5nemark System MKII (Nobel Biocare AB, Gothenburg, Sweden).
Author: Vogl Susanne
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Background:Successful osseointegration of dental implants is determined by several factors including implant surface characteristics, bone morphology and metabolism as well as primary stability of dental implants. Lack of primary implant stability and other co-factors may result in loss of osseointegration, leading to implant failures. Precise presurgical site analysis, stringent case selection, comprehensive planning and accurate surgical approach are prerequisites for functional and esthetic success. Aim:The aim of the present in vitro study was to compare insertion and removal torque of implants in polyurethane foam devices simulating bone qualities 1 and 2. Material and Methods;Sixty-four dental implants (NobelReplace Conical Connection, Nobel Biocare Gu00f6teborg, Sweden) were inserted (calibrated Elcomed, W&H, Austria) by 2 different surgeons (ML & SV) in solid rigid polyurethane foam devices with density of pcf (pounds per cubic foot) 30 or 40, which were laminated with pcf 50, for simulating bone qualities D1 and D2, respectively, according to Misch Parameters evaluated were insertion and removal torque, differences between 2 diameters (3.5 mm/13 NP and 4.3 mm/13 RP) and differences between the bone qualities. Pearson correlation coefficient was evaluated for determining the correlation between insertion and removal torque in all groupsResults: Insertion torque reached a maximum of 800 Nmm in foam simulating bone quality D1 with diameter 3.5 and 4.3 mm implants (min: 140/638; mean 512.1/763.1; SD:192/50.1), and a maximum of 568 Nmm for bone quality D2 with 3.5 mm diameter implants (min: 221; mean: 466.8; SD: 78.6). RP Implants reached a maximum insertion torque of 800 Nmm in bone quality D2 (min:339; mean: 471.8, SD: 144.7).Removal torque amounted to a maximum of 800 Nmm in bone quality D1 (min:89; mean: 365.8; SD: 194.6) for 3.5 mm diameter implants and a maximum of 694 Nmm for 4.3 mm implants (min: 409; mean: 551.1; SD: 70.3). In quality D2 bone , the 3.5 mm implants reached 379 Nmm as a maximum (min:169; mean: 317.1; SD: 49.4), whereas 4.3 mm implants had a maximum removal torque of 637 Nmm (min: 238; mean:362.5; SD:96.2).The correlation of insertion and removal torque were significant (r = 0,747 to r=0,895 for the different groups).Conclusion and clinical implication:Evaluation of insertion torque is appropriate method to assess primary stability of dental implants. Further clinical studies are needed to verify a correlation between preoperative assessment of bone quality and insertion torque to implement appropriate loading protocols.
