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Crown lengthening

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https://www.readbyqxmd.com/read/27730219/soft-tissue-cone-beam-computed-%C3%A2-tomography-st-cbct-%C3%A2-for-the-planning-of-esthetic-crown-lengthening-procedures
#1
Luisa Schertel Cassiano, Mauricio Barriviera, Sandra Suzuki, Gustavo Giacomelli Nascimento, Alessandro Lourenço Januario, Leandro Augusto Hilgert, Wagner Rodrigues Duarte
OBJECTIVE: The aim of this study was to measure the clinical crown, anatomical crown, and amount of gingiva covering the enamel of anterior maxillary teeth with soft tissue cone beam computed tomography (ST-CBCT) and thus propose a protocol for the application of this noninvasive method for the planning of esthetic crown lengthening procedures to prevent undesired root exposure. MATERIALS AND METHODS: Ten young patients (mean age 22.8 years) requiring esthetic crown lengthening surgeries but not restorative procedures were included in this study...
2016: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/27710954/uprighting-and-periodontally-accelerated-osteogenic-orthodontics-as-an-alternative-to-surgical-crown-lengthening
#2
Amjad M Nazzal, Terry M Trojan, Martyn Green
No abstract text is available yet for this article.
August 2016: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/27668099/esthetic-rehabilitation-through-crown-lengthening-surgery-and-conservative-cad-cam-veneers-a-multidisciplinary-case-report
#3
Leandro Passos, Fernando Peixoto Soares, Mauricio Gallo
This case report describes a successful multidisciplinary approach used to improve the smile esthetics of a patient presenting with excessive gingival display, asymmetric gingival margins, and small upper anterior teeth and lower anterior teeth. The treatment combined esthetic crown lengthening, dental bleaching, and restorative dentistry using CAD/CAM veneer. The 6-month follow-up examination confirmed the stability of the modification and absence of adverse effects.
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27555737/assessment-of-histological-changes-in-antemortem-gingival-tissues-fixed-at-various-time-intervals-a-method-of-estimation-of-postmortem-interval
#4
V Mahalakshmi, N Gururaj, R Sathya, T R Sabarinath, B Sivapathasundharam, S Kalaiselvan
INTRODUCTION: Conventional methods to estimate the time of death are adequate, but a histological method is yet unavailable to assess postmortem interval (PMI). The autolytic changes that occur in an unfixed antemortem gingival tissue which reflects histologically at an early stage are similar to changes that occur in postmortem tissue. These histological changes can be used and applied in a postmortem tissue as a method to assess PMI. AIMS: The aim of the study is to assess the histological changes in a gingival tissue left unfixed for various time intervals and to correlate the findings with duration...
May 2016: Journal of Forensic Dental Sciences
https://www.readbyqxmd.com/read/27548670/practice-profile-of-periodontists-in-canada-a-national-survey
#5
Aditya B Patel, Debora C Matthews, Edmond Ghiabi
OBJECTIVE: To document the profile of periodontists in private practice in Canada in terms of services provided and referral patterns. METHODS: An online survey consisted on 45 questions in 3 categories: demographics, referral patterns and periodontal procedures performed. The sampling frame consisted of all active members of the Canadian Academy of Periodontology (n= 280). Letters and email containing links to the online survey were used to invite participants and to send reminders to non-respondents on days 7, 21 and 49...
March 2016: Journal—Canadian Dental Association, Journal de L'Association Dentaire Canadienne
https://www.readbyqxmd.com/read/27538162/-an-modified-culture-method-of-primary-human-gingival-epithelial-cells
#6
J T Yu, H X Meng, K N Liu
OBJECTIVE: To establish a stable primary culture method of human gingival epithelial cells, with a higher successful rate and shorter culture time. METHODS: Nine patients who received "crown-lengthening surgery" with relatively healthy periodontal conditions were selected (n=9). Gingival samples were collected from the 9 donors during gingivectomy. Gingival epithelial cells were isolated and cultured by both an advanced enzyme digestion method and a tissue explant method...
February 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27535216/pre-restorative-crown-lengthening-surgery-outcomes-a-systematic-review
#7
REVIEW
Ioannis Pilalas, Lazaros Tsalikis, Dimitris N Tatakis
BACKGROUND: Pre-restorative crown lengthening surgery (CLS) is a common periodontal procedure, for which systematic reviews are lacking. This systematic review aimed to assess outcomes of CLS performed for restorative reasons. METHODS: Databases (MEDLINE, Scopus, OpenGrey) were searched up to January 2016 for clinical/animal trials on CLS for restorative reasons with ≥6-month follow-up. Primary outcomes investigated were: free gingival margin position, probing depth, clinical attachment level, and plaque/inflammation indices...
December 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/27515522/a-systematic-review-and-meta-analysis-on-the-effects-of-crown-lengthening-on-adjacent-and-non-adjacent-sites
#8
Cintia Mirela Guimaraes Nobre, Ana Luisa de Barros Pascoal, Emmanuel Albuquerque Souza, Luciana Machion Shaddox, Patricia Dos Santos Calderon, Ana Rafaela Luz de Aquino Martins, Bruno César de Vasconcelos Gurgel
OBJECTIVES: The objective of the study was to assess the impact of periodontal crown lengthening surgery on clinical parameters at adjacent and non-adjacent sites compared to treated sites. MATERIAL AND METHODS: An electronic search was carried out on MEDLINE-PubMed, The Cochrane Library, and ISI Web of Science databases between 1978 and 2015. Methodological quality assessment was based on Cochrane recommendations. Meta-analyses were assessed with RevMan 5.0 and heterogeneity between studies by the Higgin test (I (2))...
August 11, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27433549/digital-smile-design-concept-delineates-the-final-potential-result-of-crown-lengthening-and-porcelain-veneers-to-correct-a-gummy-smile
#9
Richard Trushkowsky, David Montalvo Arias, Steven David
Prior to initiating any treatment, it is necessary to visualize the desired outcomes. It then becomes possible to formulate the steps required to achieve this result. Digital Smile Design (DSD) utilizes patient input and information gathered through diagnostic procedures to create an esthetic treatment scheme. In the case presented here, the NYUCD Esthetic Evaluation Form, intraoral and extraoral photographs, mounted diagnostic casts, physical examination, and radiographs were the diagnostic modalities. The gathered information served as a starting point for a wax-up and intraoral mock-up...
2016: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/27409660/improving-gingival-smile-by-means-of-guided-bone-regeneration-principles
#10
Carlos Eduardo de Almeida Ferreira, Roberto Carlos Bodart Brandão, Carolina Borges Martinelli, Túlio Bonna Pignaton
OBJECTIVE: This study evaluated the effectiveness of guided bone regeneration (GBR) carried out with xenogenic bone substitute (Bio-OssTM) and collagen resorbable membrane (Bio-GideTM) to improve gingival smile (GS) in patients with excessive vertical maxillary growth (EVMG). METHODS: Twelve healthy women aged between 20 and 49 years old (mean age of 26 years), with 5 mm or more of gingival exposure during fully posed smile (FPS) due to EVMG, were included. Baseline digital photographs were taken with standardized head position at rest and FPS...
June 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27302447/comparing-laser-and-scalpel-for-soft-tissue-crown-lengthening-a-clinical-study
#11
Sana Farista, Butchibabu Kalakonda, Pradeep Koppolu, Kusai Baroudi, Esam Elkhatat, Essam Dhaifullah
Crown lengthening procedure is aimed at exposure of sufficient crown structure accomplished by a gingivectomy, an apically positioned flap with osseous resection or the use of lasers. Our present clinical study is aimed to assess the clinical effectiveness of a diode laser for functional crown lengthening procedure and to compare it with the conventional procedure using the scalpel. Fourteen patients including males and females, aged 20- 40 years were recruited and divided into two groups to undergo crown lengthening either with the scalpel or the laser...
1, 2016: Global Journal of Health Science
https://www.readbyqxmd.com/read/27283324/increased-visfatin-expression-is-associated-with-nuclear-factor-kappa-b-and-phosphatidylinositol-3-kinase-in-periodontal-inflammation
#12
Erkan Özcan, N Işıl Saygun, Rahşan Ilıkçı, Yıldırım Karslıoğlu, Uğur Muşabak, Sait Yeşillik
OBJECTIVE: Visfatin is an adipocytokine that plays a role in regulating periodontal inflammation by as yet identified mechanisms. It has been suggested that visfatin mediates inflammation via activation of the nuclear factor-kappa B (NF-κB) and phosphatidylinositol 3-kinase (PI3k) signaling pathways which play a role in the inhibition of neutrophil apoptosis. The aim of this study was to investigate the expression of visfatin, NF-κB (NF-κB1 and NF-κB2), PI3k, tumor necrosis factor alpha (TNF-α), and interleukin-1 beta (IL-1β) in the tissue of healthy individuals and patients with periodontitis...
June 9, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27256531/-finite-element-analysis-of-the-maxillary-central-incisor-with-traditional-and-modified-crown-lengthening-surgery-and-post-core-restoration-in-management-of-crown-root-fracture
#13
M Zhen, Y P Wei, W J Hu, Q G Rong, H Zhang
OBJECTIVE: To construct three-dimensional finite element models with modified crown lengthening surgery and post-core restoration in management of various crown-root fracture types, to investigate the intensity and distribution of stressin models mentioned above, and to compare and analyze the indications of traditional and modified crown lengthening surgeries from the mechanic point of view. METHODS: Nine three-dimensional finite element models with modified crown lengthening surgery and post-core restoration were established and analyzed by micro-CT scanning technique, dental impression scanner, Mimics 10...
June 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/27234300/regulation-of-vernal-migration-in-gambel-s-white-crowned-sparrows-role-of-thyroxine-and-triiodothyronine
#14
Jonathan H Pérez, J David Furlow, John C Wingfield, Marilyn Ramenofsky
Appropriate timing of migratory behavior is critical for migrant species. For many temperate zone birds in the spring, lengthening photoperiod is the initial cue leading to morphological, physiological and behavior changes that are necessary for vernal migration and breeding. Strong evidence has emerged in recent years linking thyroid hormone signaling to the photoinduction of breeding in birds while more limited information suggest a potential role in the regulation of vernal migration in photoperiodic songbirds...
August 2016: Hormones and Behavior
https://www.readbyqxmd.com/read/27110603/comparison-of-three-different-crown-lengthening-procedures-in-the-maxillary-anterior-esthetic-regions
#15
Guerino Paolantoni, Gaetano Marenzi, Jolanda Mignogna, Hom-Lay Wang, Andrea Blasi, Gilberto Sammartino
OBJECTIVE: A papilla preservation crown-lengthening procedure (PPCL) was proposed for treatment of the maxillary anterior teeth (canine to canine) and compared to two traditional techniques. METHOD AND MATERIALS: Thirty patients were assigned to three treatment groups: PPCL, the apically positioned flap with buccal approach (APF-B), and the apically positioned flap with buccal and palatal approach (APF-BP). Several clinical parameters were recorded at baseline and 6 months after surgery...
2016: Quintessence International
https://www.readbyqxmd.com/read/27041850/crown-lengthening-procedure-following-intentional-endodontic-therapy-for-correction-of-supra-erupted-posterior-teeth-case-series-with-long-term-follow-up
#16
Shruti Arun Patil, Sudhindra Kulkarni, Srinath Thakur, Balaram Naik
CONTEXT: The crown lengthening procedure (CLP) is routinely carried out to correct gingival levels and achieve esthetic contours and adequate crown lengths for restorative purposes. Though the short-term outcomes have been found to be stable, long-term results are not much reported. AIMS: To evaluate the long-term stability of the marginal bone levels, gingival levels, and the status of the teeth, which underwent endodontic therapy, followed by CLP and final restorations...
January 2016: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/27041845/use-of-modified-lip-repositioning-technique-associated-with-esthetic-crown-lengthening-for-treatment-of-excessive-gingival-display-a-case-report-of-multiple-etiologies
#17
Matheus Bortoluzzi Mantovani, Eduardo Clemente Souza, Fabiano Carlos Marson, Giovani Oliveira Corrêa, Patrícia Saram Progiante, Cléverson Oliveira Silva
Excessive gingival display during smile can result in compromised esthetics. This study aims to report a case of excessive gingival display with multiple etiologies treated by means of modified lip repositioning technique associated with esthetic crown lengthening. A 23-year-old female patient, with 5-mm gingival display during smile caused by altered passive eruption and hypermobility of the upper lip, underwent the modified lip repositioning technique associated with gingivectomy followed by flap elevation and ostectomy/osteoplasty...
January 2016: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/26905090/treatment-of-a-gummy-smile-understanding-etiology-is-key-to-success
#18
Jeff Bynum
When dealing with excessive gingival display it is important for the treating clinician to properly identify the etiology, as potential etiologic factors can vary widely. Treatment decisions in this case involving a patient with high lip dynamics and a "gummy smile" were complicated because treatment recommendations differed for each of the several etiologies involved. The treatment performed, which included orthodontics combined with crown lengthening and in which the final restorations were segmented anterior to posterior to give both the clinician and laboratory improved control, was designed to meet the patient's desired esthetic outcome while addressing the areas of risk established in the preoperative assessment...
February 2016: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/26894176/aesthetic-crown-lengthening-using-chu-aesthetic-gauges-and-evaluation-of-biologic-width-healing
#19
Aruna Nautiyal, Sheela Gujjari, Vikas Kumar
INTRODUCTION: The principles of biologic width have governed the literature and served as a clinical guideline during the evaluation of perio- restorative interrelationships. An adequate understanding of this concept is paramount to ensure adequate form, function, aesthetics and comfort of the dentition. Biologic width violation has become a common problem as most of the practitioners tend to underestimate the amount of tooth structure that must be exposed during a crown lengthening procedure...
January 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/26863221/elimination-of-a-gummy-smile-with-crown-lengthening-and-lip-repositioning
#20
Douglas H Mahn
Excessive gingival display is considered unattractive by many patients. A combination of surgical approaches may be required to correct this problem. Clinical crown lengthening involves recontouring crestal bone levels and moving the gingival margin in an apical direction. Lip repositioning reduces gingival display by limiting upper lip movement when smiling. This article describes a case in which a combination of clinical crown lengthening and lip repositioning was used to correct excessive gingival display when smiling...
January 2016: Compendium of Continuing Education in Dentistry
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