ORAL and Implantology最新文献_第5页

Biomechanical behaviour of a jawbone loaded with a prosthetic system supported by monophasic and biphasic implants. 颚骨负载假体系统的生物力学行为由单相和双相种植体支持。

ORAL and Implantology Pub Date : 2017-02-14 eCollection Date: 2016-01-01 DOI: 10.11138/orl/2016.9.1S.065

F Inchingolo, L Paracchini, F DE Angelis, A Cielo, A Orefici, D Spitaleri, L Santacroce, E Gheno, A Palermo

引用次数: 4

Implant Dentistry: Monitoring of Bacteria Along the Transmucosal Passage of the Healing Screw in Absence of Functional Load. 种植牙科:在没有功能负荷的情况下，沿愈合螺钉粘膜通道的细菌监测。

ORAL and Implantology Pub Date : 2017-02-14 eCollection Date: 2016-01-01 DOI: 10.11138/orl/2016.9.1S.010

F Meynardi, M E Pasqualini, F Rossi, L Dal Carlo, M Nardone, L Baggi

{"title":"Implant Dentistry: Monitoring of Bacteria Along the Transmucosal Passage of the Healing Screw in Absence of Functional Load.","authors":"F Meynardi, M E Pasqualini, F Rossi, L Dal Carlo, M Nardone, L Baggi","doi":"10.11138/orl/2016.9.1S.010","DOIUrl":"https://doi.org/10.11138/orl/2016.9.1S.010","url":null,"abstract":"Purpose: To assess the changes in bacterial profile along the transmucosal path of healing screws placed immediately after insertion of two-piece endosseus implants during the 4-month osseointegration phase, in absence of functional load.Materials and methods: Two site-specific samples were collected at the peri-implant mucosa of the healing screws of 80 two-piece implants, for a total of 640 samples. Implants placement was performed following a single protocol with flapless technique, in order to limit bacterial contamination of the surgical site. Identical healing screws (5 mm diameter/4 mm height) were used for each of the 80 implants. During the 4 months of the study, the patients followed a standard oral care regimen with no special hygiene maneuvers at the collection sites.Results: The present research documents that during the 4-month period prior to application of function load the bacterial profile of all sites exhibited a clear prevalence of cocci at the interface between implant neck and osteoalveolar crest margin.Conclusions: A potentially pathogenic bacterial flora developed only along the peri-implant transmucosal path.","PeriodicalId":38303,"journal":{"name":"ORAL and Implantology","volume":"9 Suppl 1/2016 to N 4/2016","pages":"10-20"},"PeriodicalIF":0.0,"publicationDate":"2017-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5333747/pdf/10-20.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34801210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Ultrasound and analysis of the deformation patterns of the masseter muscle: comparing surgical anatomy, ultrasound and functional anatomy. 咬肌的超声与变形模式分析:外科解剖、超声与功能解剖的比较。

ORAL and Implantology Pub Date : 2017-02-14 eCollection Date: 2016-01-01 DOI: 10.11138/orl/2016.9.1S.028

A Busato, G Balconi, V Vismara, L Bertelè, G Garo, D DE Gregorio

{"title":"Ultrasound and analysis of the deformation patterns of the masseter muscle: comparing surgical anatomy, ultrasound and functional anatomy.","authors":"A Busato, G Balconi, V Vismara, L Bertelè, G Garo, D DE Gregorio","doi":"10.11138/orl/2016.9.1S.028","DOIUrl":"https://doi.org/10.11138/orl/2016.9.1S.028","url":null,"abstract":"Purpose: We have tried to demonstrate whether the analysis of the muscle strain allows us to identify the three distinct functional areas of the architecture of the masseter, as one would see them by performing or viewing an anatomical dissection of said muscle, and whether these sections have behave differently in terms of origin and coping of the strain they face (quantitative analysis).Materials and methods: This work has been elaborated by the use of an ultrasound machine (MicrUs ext-1H Telemed Medical Systems Milano) and a linear probe (L12-5l40S-3 5-12 MHz 40 mm) which allowed us to record a 45 frame per second video (DCM). Videos has been elaborated by use of an ultrasound machine (MicrUs ext-1H Telemed Medical Systems Milano) and a linear probe (L12-5l40S-3 5-12 MHz 40 mm) which allowed us to record a 45 frame per second video (DCM). We applied to the resulting video a software (Mudy 1.7.7.2 AMID Sulmona Italy) for the analysis of muscle deformation patters (contraction, dilatation, cross-plane, vertical strain, horizontal strain, vertical shear, horizontal shear, horizontal displacement, vertical displacement). The number of videos of masseter muscles in contraction at maximum exertion due to dental clenching made during this research is around 12,000. Out of these we chose 1,200 videos which examine 200 patients (100 females, 100 males).Results: The deformation pattern analysis of the skeletal muscle on ultrasound basis seems to be an adequate instrument to use during the investigation of the functional structure of the masseter muscle given its ability to highlight the distinct activity of each separate part of the muscle.Conclusions: Moreover the strain does not apply to the muscle uniformly; instead it varies according to the observed area.","PeriodicalId":38303,"journal":{"name":"ORAL and Implantology","volume":"9 Suppl 1/2016 to N 4/2016","pages":"28-37"},"PeriodicalIF":0.0,"publicationDate":"2017-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5333749/pdf/28-37.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34800708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Retrospective Analysis of the Correlation Between the Facial Biotype and the Inclination of the Upper Canine Cusp Axis to the Occlusal Plane. 面部生物型与上犬牙尖轴对咬合平面倾斜度相关性的回顾性分析。

ORAL and Implantology Pub Date : 2017-02-14 eCollection Date: 2016-01-01 DOI: 10.11138/orl/2016.9.1S.001

L Pacifici, F DE Angelis, A Orefici, A Cielo, M Tatullo

{"title":"Retrospective Analysis of the Correlation Between the Facial Biotype and the Inclination of the Upper Canine Cusp Axis to the Occlusal Plane.","authors":"L Pacifici, F DE Angelis, A Orefici, A Cielo, M Tatullo","doi":"10.11138/orl/2016.9.1S.001","DOIUrl":"https://doi.org/10.11138/orl/2016.9.1S.001","url":null,"abstract":"Permanent maxillary canines are the second most frequently impacted teeth and the prevalence of this clinical condition is estimated to be 1-2% in the general population. The diagnosis of maxillary canine impaction should be based on both clinical and radiographic examinations. The aim of this study was to evaluate the presence of a correlation between the facial biotype and the inclination of the upper cusp axis. A correlation between the total radicular length of the lateral incisors was also evaluated, by comparing the side of impaction with the healthy side. Twenty three patients with a diagnosis of unilateral upper cusp impaction were recruited. For each patient, dental casts and radiographic material (panoramic radiographs and lateral cephalograms) were examined. Statistical analyses were done with Spearman's rank correlation coefficient or Spearman's rho (ρ). X-ray examinations demonstrated that canine impaction was associated to other dental anomalies (32% of the sample). The mean α angle measurements were 22.9° ± 4.1°, and mean values of the β angle were 34.7°± 4.0°. The mean distance \"d\" value was 14.6 mm ± 1.2 mm. The mean values of the angle between the upper cusp axis and the perpendicular-to-Fh plane were 20.8° ± 2.6°. Among the 23 subjects recruited, 5 showed values included in the range 25°-45° and 1 an inclination > 45°. The results obtained in the present study demonstrate a significant inverse correlation between the MM angle and the inclination of the upper cusp axis to the perpendicular-to-Fh plane.","PeriodicalId":38303,"journal":{"name":"ORAL and Implantology","volume":"9 Suppl 1/2016 to N 4/2016","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2017-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5333742/pdf/1-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34801213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Light diffusion through composite restorations added with spherical glass mega fillers. 通过添加球形玻璃填充剂的复合修复体进行光扩散。

ORAL and Implantology Pub Date : 2017-02-14 eCollection Date: 2016-01-01 DOI: 10.11138/orl/2016.9.1S.080

M Andreasi Bassi, S Andreasi Bassi, C Andrisani, S Lico, L Baggi, D Lauritano

{"title":"Light diffusion through composite restorations added with spherical glass mega fillers.","authors":"M Andreasi Bassi, S Andreasi Bassi, C Andrisani, S Lico, L Baggi, D Lauritano","doi":"10.11138/orl/2016.9.1S.080","DOIUrl":"https://doi.org/10.11138/orl/2016.9.1S.080","url":null,"abstract":"Purpose: Evaluate how the spherical glass mega fillers (SGMFs) can positively interfere with light diffusion when incorporated in a composite restoration.Materials and methods: 30 samples (Ss) were performed, applying 2 composite layers of 3 mm each: 6 were made with composite only; 6 with a layer of SGMFs of O1.5mm within the first layer of composite; 6 with 2 overlapping layers of SGMFs of O1.5mm; 6 with a layer of SGMFs of O2mm; 6 with 2 overlapping layers of SGMFs of O2mm. The curing time was set at 40s for the first layer, and 120s for the second layer, transilluminated through the first layer. Digital pictures were taken, in standardized settings, during the transillumination, and the light intensity was measured with a digital image analysis software.Results: From a lateral view the Ss with a single layer of SGMFs of O1.5mm and O2mm, the relative increments of light intensity, were of 24.37% and 33.33% respectively. Concerning the Ss made with 2 layers of SGMFs, the relative increments were of 67.99% and 66.4% respectively. In front view has emerged a relative increase rate of light intensity of 53.66% and 79.58%, in the Ss with a single layer of SGMFs of O1.5mm and of O2mm respectively. Furthermore, in the Ss with two layers of SGMFs of O1.5mm and O2mm the relative increments were of 267.53 and 319.63% respectively.Conclusion: The SGMFs are reliable in facilitating light diffusion within the light-curing composite resins.","PeriodicalId":38303,"journal":{"name":"ORAL and Implantology","volume":"9 Suppl 1-2016 to N 4-2016","pages":"80-89"},"PeriodicalIF":0.0,"publicationDate":"2017-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5333743/pdf/80-89.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34800042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Analysis of masseter deformation patterns during a maximum exertion clenching in patients with unilateral chewing. 单侧咀嚼患者最大用力咬合时咬肌变形模式分析。

ORAL and Implantology Pub Date : 2017-02-14 eCollection Date: 2016-01-01 DOI: 10.11138/orl/2016.9.1S.054

A Busato, G Balconi, V Vismara, L Bertelè, G Garo, D DE Gregorio

{"title":"Analysis of masseter deformation patterns during a maximum exertion clenching in patients with unilateral chewing.","authors":"A Busato, G Balconi, V Vismara, L Bertelè, G Garo, D DE Gregorio","doi":"10.11138/orl/2016.9.1S.054","DOIUrl":"https://doi.org/10.11138/orl/2016.9.1S.054","url":null,"abstract":"Purpose: The aim of the following study is to examine both masseter muscles (left/right) in a group of patients suffering from unilateral chewing during a maximum exertion isometric contraction using the deformation pattern analysis of ultrasound videos and compare them with the results obtained by studying patients with alternate bilateral chewing patterns.Materials and methods: This study has been conducted by use of an ultrasound machine and a linear probe which allowed us to record a video (DCM) comprised of 45 frames per second (MicrUs ext-1H Telemed Medical Systems Milano) and a linear probe (L12-5l40S-3 5-12 MHz 40 mm). The probe was fixed to a brace and the patients were asked to clench their teeth as hard as possible, obtain the muscle's maximum exertion, for 5 seconds three times, with 30 seconds intervals in between. Both right and left masseter muscles were analyzed. We applied to the ultrasound video a dedicated software (Mudy 1.7.7.2 AMID Sulmona Italy) for the analysis of muscle deformation patterns. The total number of patients for this study is 150. Out of this number, 50 belong to Group A, mono lateral chewing on the left side arch, and 50 to Group B, mono lateral chewing on the right side arch. The remains patients belong to Group C, bilateral alternate chewing. The deformation pattern analysis of the skeletal muscles on ultrasound videos allows us to highlight with ease the clear difference in the clenching capabilities and strain management between the dominant masseter and the subordinate masseter in a unilaterally chewing patient.Results: In the sample investigated both in Group A and Group B the unilateral chewing is associated with a series of parameters (number, shape, volume, position and orientation of the teeth) and is also associated with the extension of the cutting surface really available.","PeriodicalId":38303,"journal":{"name":"ORAL and Implantology","volume":"9 Suppl 1/2016 to N 4/2016","pages":"54-64"},"PeriodicalIF":0.0,"publicationDate":"2017-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11138/orl/2016.9.1S.054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34800707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Metals used in maxillofacial surgery. 用于颌面外科手术的金属。

ORAL and Implantology Pub Date : 2017-02-14 eCollection Date: 2016-01-01 DOI: 10.11138/orl/2016.9.1S.107

L Pacifici, F DE Angelis, A Orefici, A Cielo

引用次数: 24

Management and control of isotonic contraction generated stress: evaluation of masseter muscle deformation pattern by means of ecography. 等张收缩产生应力的管理与控制:咬肌变形模式的生态学评价。

ORAL and Implantology Pub Date : 2017-02-14 eCollection Date: 2016-01-01 DOI: 10.11138/orl/2016.9.1S.045

A Busato, G Balconi, V Vismara, L Bertelè, G Garo, D DE Gregorio

{"title":"Management and control of isotonic contraction generated stress: evaluation of masseter muscle deformation pattern by means of ecography.","authors":"A Busato, G Balconi, V Vismara, L Bertelè, G Garo, D DE Gregorio","doi":"10.11138/orl/2016.9.1S.045","DOIUrl":"https://doi.org/10.11138/orl/2016.9.1S.045","url":null,"abstract":"Purpose: The objective of the following study is to observe the behavior of the six layers of the masseter during an isometric contraction at maximum exertion with the deformation pattern analysis method.Materials and methods: This study has been conducted by use of an ultrasound machine (MicrUs ext-1H Telemed Medical Systems Milano) and a linear probe (L12-5l40S-3 5-12 MHz 40 mm) which allowed us to record a video (DCM) comprised of 45 frames per second. The probe was fixed to a brace and the patient was asked to clench their teeth as hard as possible, obtain the muscle's maximum exertion, for 5 seconds three times, with 30 seconds intervals in between. Both right and left masseter muscles were analyzed. Then we applied to the resulting video a software (Mudy 1.7.7.2 AMID Sulmona Italy) for the analysis of muscle deformation patterns (contraction, dilatation, cross-plane, vertical strain, horizontal strain, vertical shear, horizontal shear, horizontal displacement, vertical displacement). The number of videos of masseter muscles in contraction at maximum exertion due to dental clenching made during this research is around 12,000. Out of these we chose 1,200 videos which examine 200 patients (100 females, 100 males).Results: The analysis of the deformation patterns of the masseter allows us to observe how the six layers of the muscle have different and specific functions each, which vary depending on the applied force (application point, magnitude and direction) so that we find it impossible to assign to one of the three sections of the muscle a mechanical predominance. Therefore it appears that the three parts of the muscle have specific and synergistic tasks.","PeriodicalId":38303,"journal":{"name":"ORAL and Implantology","volume":"9 Suppl 1/2016 to N 4/2016","pages":"45-53"},"PeriodicalIF":0.0,"publicationDate":"2017-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5333755/pdf/45-53.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34801212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Surgery-first: a new approach to orthognathic surgery. 手术为先:正颌手术的新方法。

ORAL and Implantology Pub Date : 2017-02-14 eCollection Date: 2016-01-01 DOI: 10.11138/orl/2016.9.1S.098

F DE Nuccio, F DE Nuccio, M M D'Emidio, S Pelo

引用次数: 4

Polymerization shrinkage and spherical glass mega fillers: effects on cuspal deflection. 聚合收缩和球形玻璃填充剂:对尖端偏转的影响。

ORAL and Implantology Pub Date : 2017-02-14 eCollection Date: 2016-01-01 DOI: 10.11138/orl/2016.9.1S.071

M Andreasi Bassi, S Serra, C Andrisani, S Lico, L Baggi, D Lauritano

{"title":"Polymerization shrinkage and spherical glass mega fillers: effects on cuspal deflection.","authors":"M Andreasi Bassi, S Serra, C Andrisani, S Lico, L Baggi, D Lauritano","doi":"10.11138/orl/2016.9.1S.071","DOIUrl":"https://doi.org/10.11138/orl/2016.9.1S.071","url":null,"abstract":"Purpose: The Authors analyzed the effect of spherical glass mega fillers (SGMF) on reducing contraction stress in dental composite resins, by means of a cavity model simulating the cuspal deflection which occurs on filled tooth cavity walls in clinical condition.Materials and methods: 20 stylized MOD cavities (C-factor = 0.83) were performed in acrylic resin. The inner surface of each cavity was sand blasted and adhesively treated in order to ensure a valid bond with the composite resin. Three different diameter of SGMF were used (i.e. 1, 1,5, 2 mm). The samples were divided in 4 groups of 5 each: Group 1 samples filled with the composite only; Group 2 samples filled with composite added with SGMFs, Ø1mm (16 spheres for each sample); Group 3 samples filled with composite added with SGMFs, Ø1,5 mm (5 spheres for each sample); Group 4 samples filled with composite added with SGMFs, Ø2 mm (2 spheres for each sample). Digital pictures were taken, in standardized settings, before and immediately after the polymerization of the composite material, placed into the cavities. With a digital image analysis software the distances from the coronal reference points of the cavity walls were measured. Then the difference between the first and second measurement was calculated. The data were analyzed by means of the ANOVA test.Results: A significative reduction on cavity walls deflection, when the composite resin is used in addiction with the SGMFs was observed. The SGMFs of smallest diameter (1mm) showed the better outcome.Conclusion: The SGMFs are reliable in reducing contraction stress in dental composite resins.","PeriodicalId":38303,"journal":{"name":"ORAL and Implantology","volume":"9 Suppl 1-2016 to N 4-2016","pages":"71-79"},"PeriodicalIF":0.0,"publicationDate":"2017-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5333744/pdf/71-79.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34800712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7