The International journal of oral implantology : implantologist最新文献_第9页

Reliability of Soft Tissue Model Based Implant Surgical Guides; A Methodological Mistake. 基于软组织模型的种植体手术指南的可靠性研究方法论上的错误。

The International journal of oral implantology : implantologist Pub Date : 2012-08-20 DOI: 10.1563/AAID-JOI-D-12-00176.1

S. Sabour, E. V. Dastjerdi

{"title":"Reliability of Soft Tissue Model Based Implant Surgical Guides; A Methodological Mistake.","authors":"S. Sabour, E. V. Dastjerdi","doi":"10.1563/AAID-JOI-D-12-00176.1","DOIUrl":"https://doi.org/10.1563/AAID-JOI-D-12-00176.1","url":null,"abstract":"Abstract We were interested to read the paper by Maney P and colleagues published in the July 2012 issue of J Oral Implantol. The authors aimed to assess the reliability of soft tissue model based implant surgical guides reported that the accuracy was evaluated using software. 1 I found the manuscript title of Maney P, et al. incorrect and misleading. Moreover, they reported twenty-two sites (46.81%) were considered accurate (13 of 24 maxillary and 9 of 23 mandibular sites). As the authors point out in their conclusion, Soft tissue models do not always provide sufficient accuracy for implant surgical guide fabrication.Reliability (precision) and validity (accuracy) are two different methodological issues in researches. Sensitivity, specificity, PPV, NPV, likelihood ratio positive (true positive/false negative) and likelihood ratio negative (false positive/ true negative) as well as odds ratio (true resultsfalse results - preferably more than 50) are among the tests to evaluate the validity (accuracy) of a single test compared to a gold standard.2-4 It is not clear that the reported twenty-two sites (46.81%) which were considered accurate related to which of the above mentioned estimates for validity analysis. Reliability (repeatability or reproducibility) is being assessed by different statistical tests such as Pearson r, least square and paired t.test which all of them are among common mistakes in reliability analysis 5. Briefly, for quantitative variable Intra Class Correlation Coefficient (ICC) and for qualitative variables weighted kappa should be used with caution because kappa has its own limitation too. Regarding reliability or agreement, it is good to know that for computing kappa value, just concordant cells are being considered, whereas discordant cells should also be taking into account in order to reach a correct estimation of agreement (Weighted kappa).2-4 As a take home message, for reliability and validity analysis, appropriate tests should be applied.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"846 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73444307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

EFFICACY OF GBR USING COMPOSITE BONE GRAFT AND RESORBABLE COLLAGEN MEMBRANE IN SEIBERT'S CLASS I RIDGE DEFECTS- RADIOLOGICAL EVALUATION. 复合骨移植和可吸收胶原膜GBR治疗seibert I类嵴缺损的疗效评价。

The International journal of oral implantology : implantologist Pub Date : 2012-04-26 DOI: 10.1563/AAID-JOI-D-10-00211.1

S. Pushparajan, T. Ramakrishnan, N. Ambalavanan, P. Emmadi

引用次数: 1

Conventional vs. implant retained overlay dentures: a clinical trial of masseter and anterior temporalis electromyography. 传统与种植保留覆盖义齿:咬肌与颞前肌肌电图的临床试验。

The International journal of oral implantology : implantologist Pub Date : 2012-04-16 DOI: 10.1563/AAID-JOI-D-11-00190.1

Mansoor Dakhilalian, M. Rismanchian, A. Fazel, K. Basiri, H. Azadeh, Maryam Mahmoodi, S. Fayazi, Pooyan Sadr-Eshkvari

{"title":"Conventional vs. implant retained overlay dentures: a clinical trial of masseter and anterior temporalis electromyography.","authors":"Mansoor Dakhilalian, M. Rismanchian, A. Fazel, K. Basiri, H. Azadeh, Maryam Mahmoodi, S. Fayazi, Pooyan Sadr-Eshkvari","doi":"10.1563/AAID-JOI-D-11-00190.1","DOIUrl":"https://doi.org/10.1563/AAID-JOI-D-11-00190.1","url":null,"abstract":"Abstract Background: Implant supported overlay dentures (ISODs) have been widely accepted among patients using conventional removable complete dentures (CRCDs). The present study aimed to comparatively study conventional and ISODs in terms of function and coordination of masticatory muscles using electromyograms.Materials and methods: Included were 10 patients with ISODs (each with 2 implants in the intercanine area). The mean wave range (MWR) and frequency (MWF) of masseter and temporalis were recorded with (ISOD) and without (CRCD) ball attachments while maximum clenching on cotton rolls (cotton roll clenching), maximum intercuspal clenching (clenching), and unilateral gum chewing (chewing) using electromyography. Data were analyzed in SPAW using t-paired for matched groups and independent sample t-tests for unmatched ones. Results: MWF differences were not statistically significant with or without attachments (p > 0.05). Without attachments in place, MWF of both masseter and temporalis muscles significantly decreased when patients clenched on cotton rolls (p = 0.01 and 0.02, respectively) and when chewing unilaterally (p = 0.01 both). With attachments present, the right and left temporalis muscles did not show identical mean wave ranges while chewing (p = 0.01). Without attachments, this disharmony was seen in the left and right masseter muscles (p = 0.03). MWR of masseter was higher in men while chewing with attachments (p = 0.02). Without attachments, MWR of temporalis was higher in women while cotton roll clenching (p = 0.03) and chewing (p = 0.02). Conclusion: These findings are seemingly in favor of improved masticatory function and coordination in edentulous patients with the application of ISODs.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89361828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Implant-guided Volumetric Analysis of Edentulous Maxillary Bone With Cone Beam CT Scan. Maxillary Sinus Pneumatization Classification. 种植体引导下无牙上颌骨锥形束CT体积分析。上颌窦气动分类。

The International journal of oral implantology : implantologist Pub Date : 2012-04-11 DOI: 10.1563/AAID-JOI-D-11-00212.1

L. Tolstunov

{"title":"Implant-guided Volumetric Analysis of Edentulous Maxillary Bone With Cone Beam CT Scan. Maxillary Sinus Pneumatization Classification.","authors":"L. Tolstunov","doi":"10.1563/AAID-JOI-D-11-00212.1","DOIUrl":"https://doi.org/10.1563/AAID-JOI-D-11-00212.1","url":null,"abstract":"Abstract Purpose: The primary goal of this anatomic study was to measure the average bone volume of the edentulous maxilla with a CBCT scan and determine its suitability for implant treatment without additional bone grafting. The secondary goal of the study was to estimate the degree of sinus pneumatization in reviewed CBCT scans, assess the maxillary sinus-to-maxillary bone inter-relationship in edentulism, and attempt to classify maxillary sinuses based on the degree of their pneumatization.Patients and Methods: This retrospective radiographic quantitative study consisted of the analysis of CBCT scans of randomly selected 30 maxillary edentulous patients who presented in 2008-2010 to the University of the Pacific, School of Dentistry for evaluation and treatment of their edentulism. A volume of edentulous maxillary bone mesial to the maxillary sinuses (inter-sinal region) that can be used for a full-arch implant treatment was evaluated based on specifically selected and clinically relevant measurement criteria.Results: There were 30 CBCT scans of maxillary edentulous patients reviewed (9 males, 21 females) with a mean age of 67.3 years old (range from 41 to 92 years old). The total mean maxillary bone volume (MMBV) suitable for implantation was 4,408.1 mm3 and ranged from 1,489.7 to 7,263.1 mm3.Conclusion: Although many other clinical criteria are important (bone quality, alveolar crest anatomy, etc.), the results of this CBCT radiographic study indicate that in many maxillary edentulous cases the existing bone quantity (volume) can be sufficient for a full-arch maxillary implant treatment with at least 4 implants without the additional trauma or expense of bone grafts and sinus lifts. A variety of implant treatment options can be proposed based on maxillary bone availability and bone to sinus inter-relationship. It appears that with age and edentulism, the amount of available maxillary bone is steadily decreasing.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"230 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85838202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Accuracy of CBCT and 3D Stereolithographic Model in Identifying the Anterior Loop of the Mental Nerve: A Study on Cadavers. CBCT和三维立体光刻模型识别精神神经前环的准确性:尸体研究。

The International journal of oral implantology : implantologist Pub Date : 2012-03-12 DOI: 10.1563/AAID-JOI-D-11-00130.1

Ruben R Santana, J. Lozada, A. Kleinman, Aladdin J Al-Ardah, A. Herford, Jung-Wei Chen

{"title":"Accuracy of CBCT and 3D Stereolithographic Model in Identifying the Anterior Loop of the Mental Nerve: A Study on Cadavers.","authors":"Ruben R Santana, J. Lozada, A. Kleinman, Aladdin J Al-Ardah, A. Herford, Jung-Wei Chen","doi":"10.1563/AAID-JOI-D-11-00130.1","DOIUrl":"https://doi.org/10.1563/AAID-JOI-D-11-00130.1","url":null,"abstract":"Abstract AbstractThe objective of this ex vivo cadaver study was to determine the accuracy of cone beam computed tomography(CBCT) and 3D stereolithographic(STL) model in identifying and measuring the anterior loop length(ANLL) of the mental nerve. A total of 12 cadavers (24 mental nerve plexus) were used for this study. Standardized CBCT scans of each mandible were obtained both with and without radiographic contrast tracer injected into the mental nerve plexus. STL models of the two acquired CBCT images were made. ANLL were measured using CBCT, STL and anatomy. The measurements obtained from the CBCT images and STL models were then analyzed and compared with the direct anatomic measurements. Paired sample t-test was used. P values less than .05 was considered statistically significant. The mean difference between CBCT and anatomic measurement was 0.04mm and not statistically significant (p= .332) while the mean difference between STL and anatomic measurement was 0.4mm and statistically significant (p=.042). There was also a statistical significant difference between CBCT and STL (p=.048) with the mean difference of 0.35mm. Therefore, CBCT is an accurate and reliable method in determining and measuring the ANLL while the STL over or underestimated the ANLL by as much as 1.51mm and 1.83mm respectively.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73684192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Osseointegration of dental implants and osteonecrosis of the jaw in patients treated with bisphosphonate therapy: A systematic review. 双膦酸盐治疗患者牙种植体骨整合和颌骨骨坏死:一项系统综述。

The International journal of oral implantology : implantologist Pub Date : 2012-01-01 DOI: 10.1563/aaid-joi-d-11-00234.1

G. K. Chadha, A. Ahmadieh, Satish K. S. Kumar, P. Sedghizadeh

引用次数: 51

The effect of different implant-abutment connection on screw joint stability. 种植体-基台不同连接方式对螺钉连接稳定性的影响。

The International journal of oral implantology : implantologist Pub Date : 2012-01-01 DOI: 10.1563/aaid-joi-d-11-00032.1

K. Michalakis, P. Calvani, S. Muftu, A. Pissiotis, H. Hirayama

{"title":"The effect of different implant-abutment connection on screw joint stability.","authors":"K. Michalakis, P. Calvani, S. Muftu, A. Pissiotis, H. Hirayama","doi":"10.1563/aaid-joi-d-11-00032.1","DOIUrl":"https://doi.org/10.1563/aaid-joi-d-11-00032.1","url":null,"abstract":"Abstract Dental implants with an internal connection have been designed in order to establish a better stress distribution when lateral external forces act on the prosthesis and minimize the forces transmitted to the fastening screw. In the present study, ten externally and ten internally hexed implants were tested with a compressive force applied with an Instron Universal machine. Four cycles of loading-unloading were applied to each specimen, in order to achieve displacements of 0.5, 1, 2 and 2.5 mm. The mean loads for the first cycle were 256.70 N for the external connection and 256 N for the internal connection implants. The independent t test did not reveal any significant differences among the two tested groups (P=.780). For the second cycle, the mean loads needed for a displacement of 1mm were 818.19 N and 780.20 N, for the external connection and the internal connection implants respectively. The independent t test revealed significant differences among the two tested groups (P<.001). In the third cycle, the mean load values for a 2mm displacement were 1394.10 N and 1225.00 N. The independent t test revealed significant differences among the two tested groups (P<.001). The mean loads for the fourth cycle were 1488.00 N for the external connection and 1029.00 N for the internal connection implants. These loads were required for a displacement of 2.5mm. The independent t test revealed significant differences among the two tested groups (P<.001). The results of this in vitro study suggest that the internal connection design of the examined implant system could not prevent screw loosening during overloading. No implant or prosthesis failure was noticed in either group.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88023152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

CLINICAL STUDY OF FLAP DESIGN TO INCREASE THE KERATINIZED GINGIVA AROUND IMPLANTS. 4-YEAR FOLLOW-UP. 皮瓣设计增加种植体周围角化牙龈的临床研究。4年随访。

The International journal of oral implantology : implantologist Pub Date : 2012-01-01 DOI: 10.1563/aaid-joi-d-11-00236.1

G. Bruschi, R. Crespi, P. Capparé, E. Gherlone

{"title":"CLINICAL STUDY OF FLAP DESIGN TO INCREASE THE KERATINIZED GINGIVA AROUND IMPLANTS. 4-YEAR FOLLOW-UP.","authors":"G. Bruschi, R. Crespi, P. Capparé, E. Gherlone","doi":"10.1563/aaid-joi-d-11-00236.1","DOIUrl":"https://doi.org/10.1563/aaid-joi-d-11-00236.1","url":null,"abstract":"Abstract Purpose: Since the presence of keratinized gingiva is so important for peri-implant outcome, the aim of this study is to describe a partial thickness flap design to increase the amount of keratinized peri-implant tissue as well as its thickness.Materials and Methods: A total of 131 implants were placed: 103 implants (78.63%) in the mandible and 28 implants (21.37%) in the maxilla, in 85 patients. Before implant placement in edentulous ridge the residual keratinized mucosa usually was measured with a periodontal probe in a buccal-palatal direction. A palatal or lingual incision was made in order to raise a partial thickness flap with the residual keratinized tissue. After implant placement the flap was apically repositioned and secured with loose periosteal sutures. Keratinized tissue levels were calculated at baseline, at 6-month, and every year follow-up. Measurements were reported for each implant diameter.Results: At 4-year follow-up, implant survival rate of 87.79% was reported. Peri-implant keratinized mucosa confirmed clinical gain in all cases; mean levels at 1-year and 4-year follow-up were respectively 7.26 ± 2.01 mm and 7.37 ± 2.12 mm. The levels remained stable over time.Conclusions: This flap design allows to immediately correct the adaptation of the keratinized tissue around the implant, increasing the thickness and amount of the keratinized tissue.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"88 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76656073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Treatment of Congenitally Missing Maxillary Lateral Incisors: An Interdisciplinary Approach. 先天性上颌侧切牙缺失的治疗:跨学科的方法。

The International journal of oral implantology : implantologist Pub Date : 2012-01-01 DOI: 10.1563/aaid-joi-d-12-00025.1

B. Jackson, Marc Slavin

引用次数: 1

Anorganic bovine-derived hydroxyapatite versus β-tricalcium phosphate in sinus augmentation. A comparative histomorphometric study. 无机牛源羟基磷灰石与β-磷酸三钙在鼻窦增强中的对比。比较组织形态学研究。

The International journal of oral implantology : implantologist Pub Date : 2012-01-01 DOI: 10.1563/aaid-joi-d-11-00061.1

M. Kurkcu, M. Benlidayi, B. Çam, Y. Sertdemir

{"title":"Anorganic bovine-derived hydroxyapatite versus β-tricalcium phosphate in sinus augmentation. A comparative histomorphometric study.","authors":"M. Kurkcu, M. Benlidayi, B. Çam, Y. Sertdemir","doi":"10.1563/aaid-joi-d-11-00061.1","DOIUrl":"https://doi.org/10.1563/aaid-joi-d-11-00061.1","url":null,"abstract":"Abstract AbstractIntroduction: The choice of augmentation material is a crucial factor in sinus augmentation surgery. Bovine-derived hydroxyapatite (BHA) and beta-tricalcium phosphate (β-TCP) have been used successfully in sinus augmentation procedures. Choosing one of these materials for sinus augmentation is still controversial. The aim of this clinical study was to compare the biological performance of the new BHA graft material and the well known synthetic β-TCP material in sinus augmentation procedure.Material and Methods: The study consisted of 23 patients (12 male and 11 female) who were either edentulous or partially edentulous in the posterior maxilla and required implant placement. A total of 23 two-step sinus grafting procedures were performed. BHA was used in 13 patients and β-TCP was used in 10 patients. After average of 6.5 months of healing bone biopsies were taken from the grafted areas. Undecalcified sections were prepared for histomorphometric analysis. Results: The mean new bone formation was 30.13±3.45% in BHA group and 21.09±2.86% in β-TCP group (p=0.001). The mean percentage of residual graft particle area was 31.88±6.05% and 34.05±3.01% for BHA group and β-TCP group, respectively (p=0.047). The mean percentage of soft tissue area was 37.99±5.92% in BHA group and 44.86±4.28% in β-TCP group (p=0.011).Conclusion: Both graft materials demonstrated successful biocompatibility and osteoconductivity in sinus augmentation procedure. However, BHA appears to be more efficient in osteoconduction when compared to β-TCP.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80857308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3