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Crown lengthening

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https://www.readbyqxmd.com/read/29766617/gingival-tissue-reaction-to-direct-adhesive-restoration-a-preliminary-study
#1
Carlo Bertoldi, Davide Zaffe, Luigi Generali, Andrea Lucchi, Pierpaolo Cortellini, Emanuela Monari
INTRODUCTION: It is debated if composite resin marginal/submarginal direct restoration can be usefully performed without inflammatory consequences. This histological study is the first human analysis aimed to compare, in the same tooth, the gingival tissue close to composite resin restorations with gingival tissue close to hard tissue. METHODS: Eight healthy patients with almost a residual strategic tooth needing endodontic therapy, and post-and-core restoration, then indirect prosthetic restoration, were selected...
May 16, 2018: Oral Diseases
https://www.readbyqxmd.com/read/29747611/an-in-vitro-study-evaluating-the-effect-of-ferrule-design-on-the-fracture-resistance-of-endodontically-treated-mandibular-premolars-after-simulated-crown-lengthening-or-forced-eruption-methods
#2
Qingfei Meng, Qian Ma, Tianda Wang, Yaming Chen
BACKGROUND: The purpose of this study was to evaluate the effect of ferrule design on the fracture resistance of endodontically treated mandibular first premolars after simulated crown lengthening and orthodontic forced eruption methods restored with a fiber post-and-core system. METHODS: Forty extracted and endodontically treated mandibular first premolars were decoronated to create lingual-to-buccal oblique residual root models, with a 2.0 mm height of the lingual dentine wall coronal to the cemento-enamel junction, and the height of buccal surface at the cemento-enamel junction...
May 10, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/29576773/visfatin-expression-in-gingival-tissues-of-chronic-periodontitis-and-aggressive-periodontitis-patients-an-immunohistochemical-analysis
#3
Zahra Alizadeh Tabari, Forooz Keshani, Majid Sharbatdaran, Amirhossein Banishahabadi, Marziyeh Nejatifard, Hossein Ghorbani
Background: Visfatin, also known as nicotinamide phosphoribosyltransferase, has been suggested as a pro-inflammatory and immunomodulating marker for periodontitis. The aim of this study was an immunohistochemical analysis of visfatin in gingival tissues of patients with chronic periodontitis and aggressive periodontitis. Materials and Methods: In this cross-sectional study based on clinical evaluation and inclusion and exclusion criteria. Twenty patients with generalized chronic periodontitis, 13 patients with generalized aggressive periodontitis, and 20 periodontally healthy individuals enrolled...
March 2018: Dental Research Journal
https://www.readbyqxmd.com/read/29568166/expression-of-protease-activated-receptors-1-and-2-in-individuals-with-healthy-gingiva-and-chronic-periodontitis
#4
Sivasankari Thilagar, Muthukumar Santhanakrishnan, Suresh Rao
Background: Protease-activated receptors (PAR-1 and PAR-2) are found to be immensely exhibited in the periodontal tissues. These receptors are involved in the inflammatory and repair processes. Activation of PARs is mainly by the bacterial and endogenous enzymes. The aim of the study was to determine the role of PAR-1 and PAR-2 in initiating periodontal inflammation and to immunolocalize these receptors in the gingival tissues of healthy and chronic periodontitis individuals. Materials and Methods: A total of 50 patients were selected for this study, of which 25 were healthy controls and 25 were chronic periodontitis patients...
January 2018: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29508445/esthetics-in-periodontics-and-implantology
#5
REVIEW
Giovanni Zucchelli, Praveen Sharma, Ilham Mounssif
Periodontal plastic surgery comprises an increasing part of clinical periodontology. Clinical trials have traditionally used professionals to judge esthetic outcome, and few studies have addressed patient needs and requests (true end points). Development of universally accepted and validated methods for professional esthetic assessment, together with standardized questionnaires for patient-perceived outcome, may help to provide better insights into the true needs and benefits of periodontal and implant-associated plastic surgery...
June 2018: Periodontology 2000
https://www.readbyqxmd.com/read/29493814/crown-lengthening-and-restorative-procedures-in-the-esthetic-zone
#6
REVIEW
Matteo Marzadori, Martina Stefanini, Matteo Sangiorgi, Ilham Mounssif, Carlo Monaco, Giovanni Zucchelli
Crown lengthening is one of the most common surgical procedures in periodontal practice. Its indications include subgingival caries, crown or root fractures, altered passive eruption, cervical root resorption and short clinical abutment, and its aim is to re-establish the biologic width in a more apical position. While the procedure in posterior areas of the dentition has been thoroughly investigated, crown lengthening performed for esthetic reasons in the anterior areas is still a matter of debate and an evidence-based technique is not available...
June 2018: Periodontology 2000
https://www.readbyqxmd.com/read/29472662/a-guide-to-minimally-invasive-crown-lengthening-and-tooth-preparation-for-rehabilitating-pink-and-white-aesthetics
#7
F Al-Harbi, I Ahmad
The rehabilitation of anterior dental aesthetics involves a multitude of disciplines, each with its own methodologies for achieving a predefined goal. The literature is awash with different techniques for a given predicament, based on both scientific credence, as well as empirical clinical judgements. An example is crown lengthening for correcting uneven gingival zeniths, increasing clinical crown lengths, and therefore, reducing the amount of maxillary gingival display that detracts from pleasing pink aesthetics...
February 23, 2018: British Dental Journal
https://www.readbyqxmd.com/read/29340168/evolution-of-the-vertebrate-neurocranium-problems-of-the-premandibular-domain-and-the-origin-of-the-trabecula
#8
REVIEW
Shigeru Kuratani, Per E Ahlberg
The subdivision of the gnathostome neurocranium into an anterior neural crest-derived moiety and a posterior mesodermal moiety has attracted the interest of researchers for nearly two centuries. We present a synthetic scenario for the evolution of this structure, uniting developmental data from living cyclostomes and gnathostomes with morphological data from fossil stem gnathostomes in a common phylogenetic framework. Ancestrally, vertebrates had an anteroposteriorly short forebrain, and the neurocranium was essentially mesodermal; skeletal structures derived from premandibular ectomesenchyme were mostly anterior to the brain and formed part of the visceral arch skeleton...
2018: Zoological Letters
https://www.readbyqxmd.com/read/29315565/the-role-of-extracellular-matrix-metalloproteinase-inducer-glycosylation-in-regulating-matrix-metalloproteinases-in-periodontitis
#9
Z Zhang, X Yang, H Zhang, X Liu, S Pan, C Li
BACKGROUND AND OBJECTIVE: Extracellular matrix metalloproteinase inducer (EMMPRIN) is a transmembrane glycoprotein that may induce activation of matrix metalloproteinases (MMPs) and lead to the destruction of periodontal tissue. The level of EMMPRIN glycosylation might be involved in this process. This study aims to investigate the role of EMMPRIN glycosylation in regulating MMP-2 and MMP-9 during the progression of periodontitis. MATERIAL AND METHODS: Gingival tissues were collected from patients with chronic periodontitis and from patients undergoing crown-lengthening procedures (healthy gingival tissue)...
January 5, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29058855/crown-lengthening-needs-and-outcomes-in-adults-attending-a-predoctoral-clinic
#10
Ryan McGary, Josephine Franc, Sam Chui, Clara S Kim, Tobias K Boehm
In this retrospective study of 5,536 patients admitted over four years at a predoctoral dental clinic for comprehensive care, general dentists identified crown lengthening needs in 584 patients and 760 teeth. Only 51 patients and 68 teeth actually received crown lengthening procedures. For the other cases, patients discontinued treatment or chose extraction or restoration without crown lengthening procedures. Teeth that received crown lengthening procedures were most likely restored and functioning for at least one year...
February 2017: Journal of the California Dental Association
https://www.readbyqxmd.com/read/29034271/effect-of-propolis-extract-in-combination-with-eugenol-free-dressing-coe-paktm-on-pain-and-wound-healing-after-crown-lengthening-a-randomized-clinical-trial
#11
Mitra Askari, Anna Saffarpour, Jalal Purhashemi, Atena Beyki
STATEMENT OF THE PROBLEM: Researchers have long been in search of products to enhance healing and patient comfort postoperatively. PURPOSE: This study aimed to assess the efficacy of propolis extract in combination with Coe-PakTM dressing for pain relief and wound healing after crown lengthening surgery. MATERIALS AND METHOD: This randomized clinical trial was performed on 36 patients who were randomly divided into two groups of Coe-PakTM dressing with (trial group) and without (control group) propolis extract...
September 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29033526/complexity-of-comprehensive-care-treatments-in-undergraduate-dental-programs-the-benefits-of-observing-and-assisting-experienced-faculty-members
#12
Moataz Elgezawi, Khalid Hassan, Adel Alagl, Ahmad M Al-Thobity, Basel Al-Mutairi, Thamir Al-Houtan, Shazia Sadaf
OBJECTIVE: To improve the confidence of the final year dental students in completing occlusal and oral rehabilitation of patients, with complexities beyond their scope, based on full analysis of the biomechanical and esthetic considerations of each case. MATERIAL & METHODS: Two comprehensive patient situations presenting with special difficulties including extensive, reduced vertical dimension of occlusion, limited interocclusal space and maxillary alveolar bone for implant insertion necessitating bone augmentation and a sinus lift surgery was managed by two students at our institute...
October 2017: Saudi Dental Journal
https://www.readbyqxmd.com/read/29026699/comparison-of-the-clinical-biological-width-with-the-published-standard-histologic-mean-values
#13
Fatme Mouchref Hamasni, Fady El Hajj
AIMS AND OBJECTIVES: Biologic width (BW) as defined by Cohen is the part of the supracrestal gingival tissues that occupy the space between the base of the gingival crevice and the alveolar crest; it includes the junctional epithelium and the connective tissue element. Interactions between dental crowns and the marginal periodontal tissues analyzed in many review papers concluded that the recognition of the BW, in terms of crown margin placement, is beneficial for periodontal health. Therefore, knowledge of the dimensions of the sum of the junctional epithelium and connective tissue attachment as well as the sulcus depth (SD) is of clinical relevance...
September 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28808641/management-of-large-class-ii-lesions-in-molars-how-to-restore-and-when-to-perform-surgical-crown-lengthening
#14
Ana Belén Dablanca-Blanco, Juan Blanco-Carrión, Benjamín Martín-Biedma, Purificación Varela-Patiño, Alba Bello-Castro, Pablo Castelo-Baz
The restoration of endodontic tooth is always a challenge for the clinician, not only due to excessive loss of tooth structure but also invasion of the biological width due to large decayed lesions. In this paper, the 7 most common clinical scenarios in molars with class II lesions ever deeper were examined. This includes both the type of restoration (direct or indirect) and the management of the cavity margin, such as the need for deep margin elevation (DME) or crown lengthening. It is necessary to have the DME when the healthy tooth remnant is in the sulcus or at the epithelium level...
August 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28791172/ontogenetic-variations-and-structural-adjustments-in-mammals-evolving-prolonged-to-continuous-dental-growth
#15
Helder Gomes Rodrigues, Rémi Lefebvre, Marcos Fernández-Monescillo, Bernardino Mamani Quispe, Guillaume Billet
Studying dental ontogeny in mammals can provide valuable insight on the evolution of their masticatory apparatus and their related adaptations. The multiple acquisitions of a prolonged to continuous growth of teeth in herbivorous mammals in response to high abrasion represent an intensively investigated issue. However, the ontogenetic and architectural patterns associated with these repeated dental innovations remain poorly known. Here, we focused on two case studies corresponding to distant mammalian clades, the extinct Mesotheriidae (Notoungulata), which shared some striking dental features with the extant Ctenodactylidae (Rodentia)...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28689907/a-digitally-guided-dual-technique-for-both-gingival-and-bone-resection-during-crown-lengthening-surgery
#16
Xiaoqiang Liu, Jingting Yu, Jianfeng Zhou, Jianguo Tan
This paper presents a digitally guided dual technique that provides references for gingival and bone resection during crown lengthening surgery. The architecture of the teeth, gingiva, and alveolar bone is scanned and registered to design dual guides consisting of a gingivectomy guide and an alveolectomy guide that are used in periodontal surgery for esthetic rehabilitation.
March 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28665155/effects-of-high-power-pulsed-nd-yag-laser-irradiation-on-the-release-of-transforming-growth-factor-beta-tgf-%C3%AE-and-vascular-endothelial-growth-factor-vegf-from-human-gingival-fibroblasts
#17
Mehmet Sağlam, Serhat Köseoğlu, Tuğba Pekbağrıyanık, Levent Savran, Şükrü Enhoş
The purpose of this study was to investigate the effect of different high-power energy settings of a neodymium:yttrium-aluminum-garnet (Nd:YAG) laser (1064 nm) on cell viability of human gingival fibroblasts (GFs) and release of transforming growth factor-beta (TGF-β) and vascular endothelial growth factor (VEGF) on these cells. GFs were isolated from human gingival connective tissues during the crown lengthening procedure. GFs were irradiated with different laser parameters as follows: group 1: 1 W (100 mJ, 10 Hz) 10 seconds; group 2: 1...
June 30, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28632254/osteogenic-potential-of-gingival-mesenchymal-stem-cells-over-titanium-machined-surfaces
#18
Julio A Carrion, Junaid Rajani, Mohamed Al Bahrawy, Xiaojun Chan, Tae Jin Kim, Srinivas Myneni, Vincent J Iacono
PURPOSE: To evaluate the biochemical composition of bone nodules deposited by gingival mesenchymal stem cells (GMSCs) over titanium machined surfaces in vitro. MATERIALS AND METHODS: GMSCs were isolated from healthy gingival tissues of patients undergoing crown-lengthening surgical procedures. GMSCs were characterized following the International Society for Cellular Therapy guidelines. After incubation of the GMSCs with titanium discs, osteogenic differentiation was induced for 28 days...
September 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28616088/effect-of-prophylactic-administration-of-novafen-for-periodontal-surgery-on-postoperative-pain-relief
#19
RANDOMIZED CONTROLLED TRIAL
A Kashefimehr, A Babaloo, M Ghanizadeh, S H Ghasemi, H Mollazadeh
Pain is a subjective feeling and one of the defense and alerting mechanisms of the body, which is distinguished from the body senses, including touch sensation and perception of heat, cold, pressure, etc. Pain, discomfort, and edema are very common after dental procedures, especially after periodontal surgeries, usually occurring during the first 24 hours after surgery; such pains are classified as medium to severe pains. Generally, medications are used to manage patients' pain and discomfort. One of the most commonly used medications for pain control is Ibuprofen, which is one of the NSAIDs and is a simple derivative of phenylpropionic acid...
April 2017: Journal of Medicine and Life
https://www.readbyqxmd.com/read/28540108/scalpel-depigmentation-and-surgical-crown-lengthening-to-improve-anterior-gingival-esthetics
#20
K C Chethana, K Pradeep
A smile is a mesmerizing expression of joy, success, courtesy and reveals self-confidence. The harmony of the smile is determined not only by the shape, position and the color of teeth, but also by the gingival architecture. Gingival tissues form an important part of what we can consider to be a pleasing smile. The elegance of this pleasant smile could be, affected by highly pigmented gingiva. This gingival pigmentation occurs as a result of melanin granules, which are produced by melanoblast. Although melanin pigmentation does not present a medical problem, demand for cosmetic therapy is commonly sort by people with moderately pigmented gingiva...
November 2016: Annals of Medical and Health Sciences Research
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