scholarly journals 3D virtual planning in orthognathic surgery and CAD/CAM surgical splints generation in one patient with craniofacial microsomia: a case report

2016 ◽  
Vol 21 (1) ◽  
pp. 89-100 ◽  
Author(s):  
Francisco Vale ◽  
Jessica Scherzberg ◽  
João Cavaleiro ◽  
David Sanz ◽  
Francisco Caramelo ◽  
...  
Keyword(s):  
Case Report ◽  
Computer Aided Design ◽  
Computer Assisted ◽  
Linear Measurements ◽  
Postoperative Results ◽  
Virtual Planning ◽  
Postoperative Changes ◽  
Craniofacial Microsomia ◽  
Computer Aided ◽  
Cad Cam

Objective: In this case report, the feasibility and precision of tridimensional (3D) virtual planning in one patient with craniofacial microsomia is tested using Nemoceph 3D-OS software (Software Nemotec SL, Madrid, Spain) to predict postoperative outcomes on hard tissue and produce CAD/CAM (Computer Aided Design/Computer Aided Manufacturing) surgical splints. Methods: The clinical protocol consists of 3D data acquisition of the craniofacial complex by cone-beam computed tomography (CBCT) and surface scanning of the plaster dental casts. The ''virtual patient'' created underwent virtual surgery and a simulation of postoperative results on hard tissues. Surgical splints were manufactured using CAD/CAM technology in order to transfer the virtual surgical plan to the operating room. Intraoperatively, both CAD/CAM and conventional surgical splints are comparable. A second set of 3D images was obtained after surgery to acquire linear measurements and compare them with measurements obtained when predicting postoperative results virtually. Results: It was found a high similarity between both types of surgical splints with equal fitting on the dental arches. The linear measurements presented some discrepancies between the actual surgical outcomes and the predicted results from the 3D virtual simulation, but caution must be taken in the analysis of these results due to several variables. Conclusions: The reported case confirms the clinical feasibility of the described computer-assisted orthognathic surgical protocol. Further progress in the development of technologies for 3D image acquisition and improvements on software programs to simulate postoperative changes on soft tissue are required.

Computer-Assisted Surgery in the Lower Jaw: Double Surgical Guide for Immediately Loaded Implants in Postextractive Sites—Technical Notes and a Case Report

2010 ◽  
Vol 36 (1) ◽  
pp. 61-68 ◽  
Author(s):  
Daniele De Santis ◽  
Luciano Claudio Canton ◽  
Alessandro Cucchi ◽  
Guglielmo Zanotti ◽  
Enrico Pistoia ◽  
...  
Keyword(s):  
Case Report ◽  
Computer Aided Design ◽  
Alveolar Bone ◽  
Computer Assisted Surgery ◽  
Functional Results ◽  
Computer Assisted ◽  
Surgical Guide ◽  
Surgical Template ◽  
Computer Aided ◽  
Cad Cam

Abstract Computer-assisted surgery is based on computerized tomography (CT) scan technology to plan the placement of dental implants and a computer-aided design/computer-aided manufacturing (CAD-CAM) technology to create a custom surgical template. It provides guidance for insertion implants after analysis of existing alveolar bone and planning of implant position, which can be immediately loaded, therefore achieving esthetic and functional results in a surgical stage. The absence of guidelines to treat dentulous areas is often due to a lack of computer-assisted surgery. The authors have attempted to use this surgical methodology to replace residual teeth with an immediate implantoprosthetic restoration. The aim of this case report is to show the possibility of treating a dentulous patient by applying a computer-assisted surgical protocol associated with the use of a double surgical template: one before extraction and a second one after extraction of selected teeth.

scholarly journals Chairside CAD/CAM Materials: Current Trends of Clinical Uses

Biology ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1170
Author(s):  
Giulio Marchesi ◽  
Alvise Camurri Piloni ◽  
Vanessa Nicolin ◽  
Gianluca Turco ◽  
Roberto Di Lenarda
Keyword(s):  
Clinical Outcome ◽  
Computer Aided Design ◽  
Fabrication Process ◽  
Computer Assisted ◽  
Current Trends ◽  
Computer Aided ◽  
Restorative Materials ◽  
Cad Cam ◽  
Aided Design

Restorative materials are experiencing an extensive upgrade thanks to the use of chairside Computer-aided design/computer-assisted manufacturing (CAD/CAM) restorations. Therefore, due to the variety offered in the market, choosing the best material could be puzzling for the practitioner. The clinical outcome of the restoration is influenced mainly by the material and its handling than by the fabrication process (i.e., CAD/CAM). Information on the restorative materials performances can be difficult to gather and compare. The aim of this article is to provide an overview of chairside CAD/CAM materials, their classification, and clinically relevant aspects that enable the reader to select the most appropriate material for predictable success.

scholarly journals Computer-Assisted Mandibular Reconstruction using a Patient-Specific Reconstruction Plate Fabricated with Computer-Aided Design and Manufacturing Techniques

2014 ◽  
Vol 7 (2) ◽  
pp. 158-166 ◽  
Author(s):  
Frank Wilde ◽  
Carl-Peter Cornelius ◽  
Alexander Schramm
Keyword(s):  
Computer Aided Design ◽  
Mandibular Reconstruction ◽  
Patient Specific ◽  
Computer Assisted ◽  
Reconstruction Plate ◽  
Fibula Flap ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design ◽  
Five Axis

We investigated the workflow of computer-assisted mandibular reconstruction that was performed with a patient-specific mandibular reconstruction plate fabricated with computer-aided design and computer-aided manufacturing (CAD/CAM) techniques and a fibula flap. We assessed the feasibility of this technique from virtual planning to the completion of surgery. Computed tomography (CT) scans of a cadaveric skull and fibula were obtained for the virtual simulation of mandibular resection and reconstruction using ProPlan CMF software (Materialise®/DePuy Synthes®). The virtual model of the reconstructed mandible provided the basis for the computer-aided design of a patient-specific reconstruction plate that was milled from titanium using a five-axis milling machine and CAM techniques. CAD/CAM techniques were used for producing resection guides for mandibular resection and cutting guides for harvesting a fibula flap. Mandibular reconstruction was simulated in a cadaveric wet laboratory. No problems were encountered during the procedure. The plate was fixed accurately to the residual bone without difficulty. The fibula segments were attached to the plate rapidly and reliably. The fusion of preoperative and postoperative CT datasets demonstrated high reconstruction precision. Computer-assisted mandibular reconstruction with CAD/CAM-fabricated patient-specific reconstruction plates appears to be a promising approach for mandibular reconstruction. Clinical trials are required to determine whether these promising results can be translated into successful practice and what further developments are needed.

CAD/CAM Endocrown Fabrication from a Polymer-Infiltrated Ceramic Network Block for Primary Molar: A Case Report

2016 ◽  
Vol 40 (4) ◽  
pp. 264-268 ◽  
Author(s):  
Mehmet Selim Bilgin ◽  
Ali Erdem ◽  
Mehmet Tanrıver
Keyword(s):  
Case Report ◽  
Computer Aided Design ◽  
Resin Cement ◽  
Primary Tooth ◽  
Primary Molar ◽  
Long Term Treatment ◽  
Computer Aided ◽  
Cad Cam

Objective: The aim of this case report is to describe the treatment of a primary molar with a deep carious lesion by pulpotomy and placement of a ceramic endocrown. Clinical case: A 7-year-old male patient with profound caries in tooth number 85 was referred to our clinic and underwent a pulpotomy. As the final treatment in tooth restoration, placement of an endocrown was planned, because little more than half of the tooth structure remained. After an additional request from the patient's parents for an advanced and prompt restoration, a computer-aided design/computer-aided manufacturing (CAD/CAM) polymer-infiltrated ceramic network (PICN) block was chosen. A three-dimensional model of the arch was obtained after scanning the dental cast, and the endocrown was designed digitally according to the model. When the design was complete, the endocrown was fabricated with a milling machine. Finally, the endocrown was cemented with self-adhesive resin cement. Results: Over the 9-month follow-up period, no pulpal or periradicular pathology was observed on radiographs. Regarding the crown, the marginal fit was excellent, the anatomical form was protected, and no discoloration occurred. Conclusion: During follow-up, the CAD/CAM PICN block endocrown proved to be a good material for the short- to long-term treatment of a primary tooth. However, more clinical cases and follow-up are required to investigate the long-term effects of antagonistic tooth wear.

scholarly journals Strategic Use of CAD-CAM Interim Restoration for the Recovery of the Vertical Dimension of Occlusion in the Posterior Partially Edentulous Jaw

2020 ◽  
Vol 10 (21) ◽  
pp. 7735
Author(s):  
Hai Yen Mai ◽  
Jae-Min Seo ◽  
Jae-Kwang Jung ◽  
Du-Hyeong Lee
Keyword(s):  
Case Report ◽  
Computer Aided Design ◽  
Vertical Dimension ◽  
Posterior Region ◽  
Occlusal Contact ◽  
Dental Prostheses ◽  
Computer Aided ◽  
Cad Cam ◽  
Fixed Dental Prostheses ◽  
Aided Design

Occlusal contact loss occasionally occurs following the placement of implant-supported fixed dental prostheses in the posterior region. This complication is caused by the change in the vertical dimension of occlusion after the recovery of mastication. The change is probably related to the prosthesis sinking phenomenon and previous mandibular dislocation. The use of interim prostheses could help re-establish the vertical dimension of occlusion. The definitive prostheses can then be accurately fabricated using digital techniques in the newly established vertical dimension. In this case report, we introduce a protocol incorporating a computer-aided design and computer-aided manufacturing (CAD-CAM) interim prosthesis and digital techniques to minimize the occurrence of unexpected initial occlusal changes in the prosthetic treatment of implant-supported prostheses in the posterior region.

scholarly journals Composite vs Ceramic Computer-aided Design/Computer-assisted Manufacturing Crowns in Endodontically Treated Teeth: Analysis of Marginal Adaptation

2013 ◽  
Vol 38 (6) ◽  
pp. 663-673 ◽  
Author(s):  
A Ramírez-Sebastià ◽  
T Bortolotto ◽  
M Roig ◽  
I Krejci
Keyword(s):  
Computer Aided Design ◽  
Computer Assisted ◽  
Marginal Adaptation ◽  
Crown Group ◽  
Endodontically Treated Teeth ◽  
Full Coverage ◽  
Computer Aided ◽  
Cad Cam ◽  
Group 2 ◽  
Aided Design

SUMMARY Objectives To compare the marginal adaptation between ceramic and composite CEREC crowns in endodontically treated teeth restored with endocrowns or with a short or a long post. Methodology Forty-eight intact maxillary incisors were used. After endodontic treatment, the crowns were sectioned 2 mm coronally to the cemento-enamel junction, which provided a ferrule of 2 mm. The prepared teeth were divided randomly into six groups (n=8). Group 1 was restored with a large fiberglass post, composite core, and ceramic full-coverage computer-aided design/computer-assisted manufacturing (CAD-CAM) crown. Group 2 was restored with a short fiberglass post, composite core, and ceramic full-coverage CAD-CAM crown. Group 3 was restored with a large fiberglass post, composite core, and composite full-coverage CAD-CAM crown (LPCpr). Group 4 was restored with a short fiberglass post, composite core, and composite full-coverage CAD-CAM crown (SPCpr). Groups 5 and 6 were restored with ceramic and composite CEREC machined endocrowns, respectively (EndoCer and EndoCpr). The restored teeth were loaded thermomechanically in a computer-controlled chewing machine. Impressions of each restoration were made in a polyvinylsiloxane material before and after loading. Gold-coated epoxy replicas were prepared for scanning electron microscopy examination at 200× magnification. Results Loading had a statistically significant effect (p<0.05) on the percentage of “continuous margin” in all groups. The LPCpr, SPCpr, and EndoCpr groups showed the highest percentage of continuous margin initially and after loading. The effect of the different post lengths on marginal adaptation was not significant (p>0.05). Conclusion CAD-CAM crowns fabricated from millable composite resin blocks (Paradigm MZ100) offer a superior option to all-ceramic crowns (IPS Empress CAD).

Robotics and the Automated Factory

1983 ◽  
Vol 27 (5) ◽  
pp. 391-391
Author(s):  
H. McIlvaine Parsons
Keyword(s):  
Human Factors ◽  
Computer Aided Design ◽  
Industrial Robots ◽  
Computer Assisted ◽  
Industrial Automation ◽  
Computer Aided ◽  
Cad Cam ◽  
Industrial Productivity ◽  
Aided Design ◽  
Hostile Environments

Although automation in manufacturing is by no means novel, only recently have such manifestations as increasing use of robots and CAD/CAM (Computer-Aided Design/Computer-Assisted Manufacturing) involved human factors scientists/practitioners. This panel session suggests how these can contribute to industrial productivity by examining and recommending suitable divisions of labor between automation and workers and ways to improve interactions between them. For the most part these considerations have been sadly lacking in both technical and popular discussions about industrial robots. Five panelist will approach them from two perspectives: actual human factors experience in industrial automation, including robotics, and applicable experience in closely related areas, such as the use of teleoperators in hostile environments (nuclear and battlefield).

Full-mouth Rehabilitation of Hypocalcified-type Amelogenesis Imperfecta With Chairside Computer-aided Design and Computer-aided Manufacturing: A Case Report

2019 ◽  
Vol 44 (3) ◽  
pp. E145-E158
Author(s):  
C Moussally ◽  
H Fron-Chabouis ◽  
A Charrière ◽  
L Maladry ◽  
E Dursun
Keyword(s):  
Case Report ◽  
Computer Aided Design ◽  
Functional Results ◽  
Well Being ◽  
Amelogenesis Imperfecta ◽  
Computer Aided Manufacturing ◽  
Patient Reported ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design

SUMMARY Background: This case report describes the complete full-mouth treatment of hypocalcified amelogenesis imperfecta (AI) by chairside computer-aided design and computer-aided manufacturing (CAD/CAM). Case summary: After several years of interrupted dental care, a 17-year-old female patient presented with pain and also esthetic and functional discomfort. With loss of enamel and dyschromia affecting all teeth, the diagnosis was hypocalcified AI. Affected tissues were eliminated, gingivectomy with laser was performed, an indented jig was used to record the centric relationship during optical impressions, and 28 full ceramic crowns were created by chairside CAD/CAM in four sessions. The patient reported rapid pain relief and an overall improvement of well-being. Conclusion: AI sequelae can be treated promptly and conservatively with chairside CAD/CAM, obtaining esthetic and functional results.

Effect of Preparation Depth on the Marginal and Internal Adaptation of Computer-aided Design/Computer-assisted Manufacture Endocrowns

2016 ◽  
Vol 41 (6) ◽  
pp. 607-616 ◽  
Author(s):  
MD Gaintantzopoulou ◽  
HM El-Damanhoury
Keyword(s):  
Analysis Of Variance ◽  
Computer Aided Design ◽  
Region Of Interest ◽  
Computer Assisted ◽  
Marginal Gap ◽  
Computer Aided ◽  
Cad Cam ◽  
Internal Adaptation ◽  
Aided Design ◽  
Internal Gap

SUMMARY The aim of the study was to evaluate the effect of preparation depth and intraradicular extension on the marginal and internal adaptation of computer-aided design/computer-assisted manufacture (CAD/CAM) endocrown restorations. Standardized preparations were made in resin endodontic tooth models (Nissin Dental), with an intracoronal preparation depth of 2 mm (group H2), with extra 1- (group H3) or 2-mm (group H4) intraradicular extensions in the root canals (n=12). Vita Enamic polymer-infiltrated ceramic-network material endocrowns were fabricated using the CEREC AC CAD/CAM system and were seated on the prepared teeth. Specimens were evaluated by microtomography. Horizontal and vertical tomographic sections were recorded and reconstructed by using the CTSkan software (TView v1.1, Skyscan).The surface/void volume (S/V) in the region of interest was calculated. Marginal gap (MG), absolute marginal discrepancy (MD), and internal marginal gap were measured at various measuring locations and calculated in microscale (μm). Marginal and internal discrepancy data (μm) were analyzed with nonparametric Kruskal-Wallis analysis of variance by ranks with Dunn's post hoc, whereas S/V data were analyzed by one-way analysis of variance and Bonferroni multiple comparisons (α=0.05). Significant differences were found in MG, MD, and internal gap width values between the groups, with H2 showing the lowest values from all groups. S/V calculations presented significant differences between H2 and the other two groups (H3 and H4) tested, with H2 again showing the lowest values. Increasing the intraradicular extension of endocrown restorations increased the marginal and internal gap of endocrown restorations.

Sign in / Sign up

Export Citation Format

Share Document