scholarly journals Retreatment of 6 Ceramic Restorations In A Single Session - The Application of Er:YAG Laser And CAD/CAM Technology: An 1 Year Follow Up Clinical Evaluation

2021 ◽  
Vol 24 (2) ◽  
Author(s):  
Christian Giancarlo Bernal ◽  
Ester Mi Ryoung Lee ◽  
Carlos De Paula Eduardo ◽  
Ana Maria Aparecida Souza ◽  
Luciane Hiramatsu Azevedo
Keyword(s):  
High Speed ◽  
Er:Yag Laser ◽  
Single Session ◽  
High Power Lasers ◽  
Yag Laser ◽  
Anesthetic Agents ◽  
All Ceramic ◽  
Cad Cam ◽  
Ceramic Restorations

Background: To present the benefits of high power lasers (Er: YAG and Nd: YAG) over the use of the high speed turbine for the extraction of ceramics restorations, without damaging the surfaces of the teeth; being a relatively easier and faster procedure without the use of anesthetic agents, and the preparation of the ceramic restorations and cementing in the single session; with a follow-up of 1 year. Objective: The benefits of lasers over high-speed turbine mechanical instrumentation for crown removal encompass efficient restoration recovery without damage to tooth surfaces; and a relatively easier and faster procedure without the use of anesthetic agents. Methods: The Er: YAG laser (no contact; 3.2-4.0 W, 20 Hz) was used to extract the porcelain prosthesis, followed by a gingivectomy with the Nd: YAG laser on tooth 12 to improve the gingival contour. The dental surfaces where the ceramic prosthesis will be cemented were scanned. Then, CAD / CAM technology was used to make the ceramic veneers that were cemented in the same session. Results: The efficacy the Er:YAG laser energy was observed by the decreased of the time to remove all-ceramic materials through ablation of bonding cements, reducing working time by 75% compared to a high-speed turbine. Conclusions: An Er: YAG laser can safely remove lithium disilicate crowns with the settings used in this study. Laser-assisted removal of all ceramic PDFs is a promising treatment protocol. The use of the Nd: YAG (2.0 W power, short 20Hz, 320 µm optical fiber, in contact) laser allowed gingivoplasty to be performed, automatically cauterizing avoiding post-operative bleeding, and facilitating the preparation of ceramic restorations the same day. The use of high-power lasers and the use of accompanying CAD / CAM technology allowed this clinical case to be completed in a single visit without the use of temporary restorations, achieving absolute patient satisfaction.   Keywords Er:YAG; Nd:YAG; Lithium disilicate ceramic; CAD/CAM.

Marginal Fit of Heat-pressed vs CAD/CAM Processed All-ceramic Onlays Using a Milling Unit Prototype

2008 ◽  
Vol 33 (6) ◽  
pp. 644-650 ◽  
Author(s):  
S. Reich ◽  
S. Gozdowski ◽  
L. Trentzsch ◽  
R. Frankenberger ◽  
U. Lohbauer
Keyword(s):  
Clinical Relevance ◽  
Clinical Performance ◽  
Important Influence ◽  
Marginal Gap ◽  
Marginal Fit ◽  
All Ceramic ◽  
Cad Cam ◽  
Ceramic Restorations

Clinical Relevance The marginal fit of all-ceramic restorations has an important influence on the clinical performance and lifetime of adhesively luted restorations. In proximal boxes, an average marginal gap of less than 100 μm is claimed. These clinical requirements are fulfilled by both processing procedures.

scholarly journals Fracture Rates and Lifetime Estimations of CAD/CAM All-ceramic Restorations

2015 ◽  
Vol 95 (1) ◽  
pp. 67-73 ◽  
Author(s):  
R. Belli ◽  
A. Petschelt ◽  
B. Hofner ◽  
J. Hajtó ◽  
S.S. Scherrer ◽  
...  
Keyword(s):  
All Ceramic ◽  
Cad Cam ◽  
Ceramic Restorations

scholarly journals Aesthetic All-ceramic Restorations: CAD-CAM System

2013 ◽  
Vol 7 (1) ◽  
pp. 139-147
Author(s):  
Enrique Fernández Bodereau ◽  
Laura Bessone ◽  
Gabriela Cabanillas
Keyword(s):  
All Ceramic ◽  
Cad Cam ◽  
Ceramic Restorations

scholarly journals Esthetic Rehabilitation of Anterior Teeth with Copy-Milled Restorations: A Report of Two Cases

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Sapna Rani ◽  
Jyoti Devi ◽  
Chandan Jain ◽  
Parul Mutneja ◽  
Mahesh Verma
Keyword(s):  
Clinical Success ◽  
Ceramic Materials ◽  
Digital Revolution ◽  
Anterior Teeth ◽  
All Ceramic ◽  
Computer Aided ◽  
Recent Developments ◽  
Cad Cam ◽  
Copy Milling ◽  
Ceramic Restorations

Digitalization has become part and parcel of contemporary prosthodontics with the probability of most of the procedures being based on the digital techniques in the near future. This digital revolution started in the latter half of the 20th century by converting analog objects/signals into digital bits and bytes. Recent developments in all-ceramic materials and systems of computer-aided designing and computer-aided manufacturing (CAD/CAM), copy milling, and so forth offer excellent esthetics and superb biocompatibility. Copy milling system for ceramics enables milling of the zirconia cores of all-ceramic restorations precisely and also if this system is properly used the procedure for fabricating all-ceramic restorations can be substantially simplified. This case report presents fabrication of all-ceramic Maryland Bridge and post-core with a copy milling system for esthetics and preservation of integrity of tooth. For both of the patients, the use of biologic, all-ceramic, copy-milled restorations resulted in clinical success and recovered function and esthetics.

High-strength CAD/CAM-fabricated veneering material sintered to zirconia copings — A new fabrication mode for all-ceramic restorations

2009 ◽  
Vol 25 (1) ◽  
pp. 121-128 ◽  
Author(s):  
F BEUER ◽  
J SCHWEIGER ◽  
M EICHBERGER ◽  
H KAPPERT ◽  
W GERNET ◽  
...  
Keyword(s):  
High Strength ◽  
All Ceramic ◽  
Cad Cam ◽  
Ceramic Restorations

scholarly journals All-ceramic Restorations Fabricated by Dental CAD/CAM System (CEREC^[○!R])

1993 ◽  
Vol 47 (4) ◽  
pp. 428-434 ◽  
Author(s):  
Ryuji Hosokawa ◽  
Ker Kong Chen ◽  
Hiroshi Nagamatsu ◽  
Masamichi Terashita ◽  
Yasunari Uchida
Keyword(s):  
All Ceramic ◽  
Cad Cam ◽  
Ceramic Restorations

scholarly journals Clinical Application of Er:YAG Laser and Cryosurgery in Gingival Depigmentation

2014 ◽  
Vol 5 (2) ◽  
pp. 102-108 ◽  
Author(s):  
Amirhossein Farahmand ◽  
Ahmad Moghareh Abed ◽  
Yasaman Mansouri
Keyword(s):  
Clinical Application ◽  
Er:Yag Laser ◽  
Systemic Disease ◽  
Medical Problem ◽  
Melanin Pigmentation ◽  
Yag Laser ◽  
Patient’S Satisfaction ◽  
Postoperative Swelling ◽  
Gingival Depigmentation

ABSTRACT Background Gingival melanin pigmentation often occurs as the result of abnormal deposition of melanin. Melanin pigmentation is completely benign and presents no medical problem. However, patients complain the esthetic problem as ‘Black Gum’. The aim of this study was to compare the effectiveness of depigmentation by Er:YAG laser and cryosurgery. Materials and methods This study included 20 patients with gingival pigmentation of maxillary incisors, aged 15 to 44 years. Excluding criteria were smoking, systemic disease and pregnancy. Patients treated randomized split mouth, with Er:YAG laser (Pd: 120 mj, RR:12 Hz) along with water spraying of half of maxillary gingivae and on the opposite side cryosurgery was done under topical anesthesia. Patients were followed up at 1, 2, 4 weeks and 3, 6, 12 months after treatment. Results Healing was uneventful follow-up period for 6 to 12 months showed no repigmentation in none of them. Slight erythema was observed. No postoperative swelling, hemorrhage, pain, infection were reported. Conclusion Depigmentation of gingival melanin hyperpigmentation by cryosurgery and Er: YAG laser radiations were found to be an effective procedures. Postoperative patient's satisfaction were impressive. How to cite this article Farahmand A, Moghareh Abed A, Mansouri Y. Clinical Application of Er: YAG Laser and Cryosurgery in Gingival Depigmentation. World J Dent 2014;5(2):102-108.

scholarly journals Findings of a Four-Year Randomized Controlled Clinical Trial Comparing Two-Piece and One-Piece Zirconia Abutments Supporting Single Prosthetic Restorations in Maxillary Anterior Region

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Guerino Paolantoni ◽  
Gaetano Marenzi ◽  
Andrea Blasi ◽  
Jolanda Mignogna ◽  
Gilberto Sammartino
Keyword(s):  
Clinical Results ◽  
Observation Time ◽  
Anterior Region ◽  
Controlled Study ◽  
Controlled Clinical Trial ◽  
Randomized Controlled ◽  
Custom Made ◽  
All Ceramic ◽  
Ceramic Restorations

The purpose of this randomized controlled study is to investigate the clinical results obtained over four years and incidence of complications associated withone- versustwo-piece custom made zirconia anchorages, in single tooth implant-supported restorations of the maxillary anterior region. Sixty-five patients, with a total of 74 missing maxillary teeth, were selected in the period from February 2007 to July 2010. Two different ways of custom made zirconia abutment and final prosthetic restoration were evaluated: a standard zirconia abutment associated with a pressed layer of lithium disilicate with an all-ceramic cemented restoration versus one-piece restoration with the facing porcelain fired and pressed straight to the custom made zirconia abutment. In 29 cases, the restoration consisted of an all-ceramic restoration for cementation (two pieces); in 45 cases the restoration was a screw-retained restoration (one piece). Three all-ceramic restorations broke during the observation time. Two one-piece restorations fractured after 26 months. At follow-up examination there were no significant differences between one-piece and two-piece groups regarding the PI, BI, and MBL. Awaiting studies with longer follow-up times, a careful conclusion is that zirconia anchorages for single-implant restorations seem to demonstrate good short-term technical and biological results.

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