Periodontal plastic surgery for esthetic crown lengthening by using data merging and a CAD-CAM surgical guide

Author(s):  
Gerardo Mendoza-Azpur ◽  
Heydi Cornejo ◽  
Milton Villanueva ◽  
Renato Alva ◽  
André Barbisan de Souza
2005 ◽  
Vol 6 (3) ◽  
pp. 139-147 ◽  
Author(s):  
K. Nandakumar ◽  
T. Roshna

Abstract Excessive gingival display space and gingival hyperpigmentation are major concerns for a large number of patients visiting the dentist. Melanin hyperpigmentation usually does not present a medical problem, but patients usually complain of dark gums as unaesthetic. This problem is aggravated in patients with a “gummy smile” or excessive gingival display while smiling. Esthetic periodontal plastic surgery is especially rewarding in such individuals with compromised esthetics. A case is reported here on the cosmetic correction of “black gums” and “gummy smile.” Periodontal plastic surgery combining gingival depigmentation and esthetic crown lengthening was performed in a single appointment using scalpel surgical technique. The outline of steps involved in the surgical procedure is demonstrated and a brief review of the various gingival depigmentation techniques is depicted here. Citation Roshna T, Nandakumar K. Anterior Esthetic Gingival Depigmentation and Crown Lengthening: Report of a Case. J Contemp Dent Pract 2005 August;(6)3:139-147.


2019 ◽  
pp. 1-3

Periodontal Plastic Surgery comprises a limited number of surgical procedures which focus on the establishment of normal morphology and architecture of periodontal tissues in order to achieve aesthetical, biological and functional outcomes. The main surgical techniques concern the correction of morphology, position and amount of gingiva and in some cases the reconstruction and augmentation of alveolar ridge. Those surgical procedures include the treatment of gingival recession, surgical crown lengthening, augmentation of the width of attached gingiva and,the vertical or horizontal augmentation of alveolar ridge. Each surgical technique is followed by determined indications, contra-indications, advantages, disadvantages and, predictability.


2013 ◽  
Vol 2 (2) ◽  
pp. 50-54
Author(s):  
Ashok Sethi ◽  
Thomas Kaus ◽  
Naresh Sharma ◽  
Peter Sochor

Safe clinical practice in implant dentistry requires an accurate investigation of the availability of bone for implant placement and the avoidance of critical anatomical structures. Modern imaging techniques using computed tomography (CT) and cone beam computed tomography (CBCT) provide the clinician with the required information. The imaging thus obtained provides accurate representation of the height, width and length of the available bone.1 In addition, whenever adequate radiation dose is used, accurate information about the bone density in Hounsfield units can be obtained. Important spatial information regarding the orientation of the ridges and the relationship to the proposed prosthetic reconstruction can be obtained with the aid of radiopaque templates during the acquisition of CT scan data. Modern software also provides the facility to decide interactively upon the positioning of the implants and is able to relate this to a stereolithographic model constructed from the imaging data. A surgical guide for the accurate positioning of the implants can be constructed. The construction of screw retained prostheses is fraught with difficulties regarding the accuracy of the construction. Accurate fit of the prosthesis is difficult to obtain due to the inherent errors in impression taking, component discrepancies, investing and casting inaccuracies.2,3 CAD/CAM technology eliminates the inaccuracies involved with the investing and casting of superstructures. Clinical Case This case describes the management of an 84 year old female patient, who had recently lost her remaining mandibular anterior teeth. This resulted in the patient's inability to wear conventional dentures in the mandible.


2016 ◽  
Vol 138 (6) ◽  
pp. 6-8 ◽  
Author(s):  
G.V. Garje ◽  
S.V. Khaladkar ◽  
A.N. Khengare ◽  
J.M. Pawar ◽  
M.S. Vidhate

Author(s):  
Larissa Braga dos Santos ◽  
Adriano Relvas Barreira de Oliveira ◽  
Mauro Lefrançois ◽  
Marcos Venício Azevedo ◽  
Pablo Sotelo ◽  
...  

Digital planning of the prosthesis associated with surgical planning increased predictability, since surgical guides indicate the best place for implant installation, thus reducing the number of complications, and the CAD/CAM system provides predictability in the preparation of final restorations, according to the procedure previously planned. Our study reported a digital workflow used for the guided installation of two dental implants in regions 14 and 16, extraction of tooth 15 and installation of a fixed prothesis over implants. After anamnesis and clinical evaluation, intra- and extra-oral photographs of the patient were performed, molding the upper arch with polyvinylsiloxane (2-step putty/light-body technique) and requesting computed tomography. The plaster model obtained was sent to the laboratory and scanned. The generated file (STL) was used to create a diagnostic wax-up that was aligned to the tomography (in DICOM format), enabling the three-dimensional planning of the implants, which generated a partial printed surgical guide after approval of the dentist. After six months, the patient received the provisional fixed prosthesis printed in PMMA (polymethylmethacrylate) on an intermediate in PEEK (polyetheretherketone) aiming to condition an emergency profile to receive a definitive prosthesis two months later, with zirconia-milled infrastructure on a ti-base. The correct understanding of the operator about the steps of the digital workflow (diagnosis, prosthetic planning, surgical planning, guide preparation, temporary and final restorations) gives the operator improved predictability at the time of surgery as well as satisfactory aesthetic and functional result of definitive restorations.


2015 ◽  
Vol 1 (2) ◽  
pp. 40
Author(s):  
Ade Ismail Abdul Kodir

Background: Gingival pigmentation is the coloring/staining of the gingiva in the form of a dark purplish color or irregular light brown spots. This staining is derived from melanin granules produced by cells melanoblas. Gingival hyperpigmentation caused by excessive melanin deposition . The cause of this gingival hyperpigmentation is multifactorial : genetic factors , local and systemic . The aims of this article is to overbear the gingival hyperpigmentation with simple techniques , does not require several equipments , but gives contentment results to the patient . Discussion : The gingival melanin hyperpigmentation is not cause medical problems , usually to the point the appearance especially when talking and smiling . Depigmentation is periodontal plastic surgery to remove or reduce gingival hyperpigmentation . There are many ways to eliminate gingival hyperpigmentation , one of them is a surgical using scalpel . Depigmentation surgery does not require any special tools but gives satisfactory results for the patient. Conclusion : Hyperpigmentation gingival surgery techniques can be overcome by using scalpel surgery.


RSBO ◽  
2017 ◽  
Vol 1 (1) ◽  
pp. 50
Author(s):  
Keith Jimmy Gonçalves ◽  
Gabrielle Gobbo Agnoletto ◽  
Leonardo Fernandes Da Cunha ◽  
Carmen Mueller Storrer ◽  
Tatiana Miranda Deliberador

Introduction: Today, the appreciation of aesthetic dentistry by society brought to the search for materials and techniques that improve the appearance of smile, which is essential in maintaining physical and mental health of the patient. Objective: This study aimed to report a case of gummy smile involving Periodontics and Restorative Dentistry. Case report: This case, despite other possible alternatives, was solved through periodontal surgery (clinical crown augmentation associated with osteotomy) and indirect restorations with porcelain crowns. Conclusion: In our experience this procedure is safe, predictable, with minimal risks or side effects, and it is a treatment option for these cases.


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