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crown and gingiva

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https://www.readbyqxmd.com/read/28925546/multidisciplinary-full-mouth-rehabilitation-with-soft-tissue-regeneration-in-the-esthetic-zone
#1
Anja Liebermann, Stefan Frei, Madalena Lucia Pinheiro Dias Engler, Otto Zuhr, Otto Prandtner, Daniel Edelhoff, Reza Saeidi Pour
OBJECTIVE: Oral rehabilitation often requires a multidisciplinary approach including restorative dentistry, prosthodontics, and periodontology to fulfill high esthetic and functional demands, frequently combined with changes in the vertical dimension. The presence of gingival recessions can be associated with numerous factors, such as brushing or preparation trauma and persistent inflammation of the gingiva due to inadequate marginal fit of restorations. Because gingival recessions can cause major esthetic and functional problems, obtaining stability of the gingival tissue around prosthetic restorations is of essential concern...
September 19, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28816295/-three-dimensional-data-fusion-method-for-tooth-crown-and-root-based-on-curvature-continuity-algorithm
#2
Y J Zhao, Y Liu, Y C Sun, Y Wang
OBJECTIVE: To explore a three-dimensional (3D) data fusion and integration method of optical scanning tooth crowns and cone beam CT (CBCT) reconstructing tooth roots for their natural transition in the 3D profile. METHODS: One mild dental crowding case was chosen from orthodontics clinics with full denture. The CBCT data were acquired to reconstruct the dental model with tooth roots by Mimics 17.0 medical imaging software, and the optical impression was taken to obtain the dentition model with high precision physiological contour of crowns by Smart Optics dental scanner...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28770188/early-childhood-caries-prevalence-risk-factors-and-prevention
#3
REVIEW
Sukumaran Anil, Pradeep S Anand
Early childhood caries (ECC) is major oral health problem, mainly in socially disadvantaged populations. ECC affects infants and preschool children worldwide. The prevalence of ECC differs according to the group examined, and a prevalence of up to 85% has been reported for disadvantaged groups. ECC is the presence of one or more decayed, missing, or filled primary teeth in children aged 71 months (5 years) or younger. It begins with white-spot lesions in the upper primary incisors along the margin of the gingiva...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28727466/ceramic-veneers-with-gingiva-shaded-porcelain-to-replace-lost-interdental-papillae-a-case-report
#4
Stephen J Chu, Adam J Mieleszko
With implant-supported reconstructions, gingiva-shaded pink-colored restorative materials serve as an option for replacing both hard and soft tissues cosmetically. This article presents a case report describing restorative treatment for a patient who requested individual crowns and veneers after she had had multiple surgical interventions to replace a failing implant tooth No. 9. In addition to replacement of the implant prosthesis, this case involved restorative papillae reconstruction that was performed to treat interdental recession that had occurred after the surgeries...
July 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28721329/effect-of-different-crown-materials-on-the-interleukin-one-beta-content-of-gingival-crevicular-fluid-in-endodontically-treated-molars-an-original-research
#5
Prathibha Saravanakumar, Padmanabhan Thallam Veeravalli, Anand Kumar V, Kasim Mohamed, Umamaheswari Mani, Manita Grover, Saravanan Thirumalai Thangarajan
INTRODUCTION: Crown materials used in fixed prosthodontics come into close and prolonged contact with the gingiva. OBJECTIVE: The purpose of this study was to evaluate the effect of different crown materials on the interleukin-one beta (IL-1β) content of the gingival crevicular fluid and to study which crown material causes the highest inflammation on the marginal gingiva on a biochemical basis. MATERIALS AND METHODS: Twenty patients with single endodontically treated tooth were examined...
June 16, 2017: Curēus
https://www.readbyqxmd.com/read/28689907/a-digitally-guided-dual-technique-for-both-gingival-and-bone-resection-during-crown-lengthening-surgery
#6
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.
July 7, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28617953/the-gingival-biotype-in-a-cohort-of-chinese-subjects-with-and-without-history-of-periodontal-disease
#7
F Liu, G Pelekos, L J Jin
OBJECTIVE: The present study aimed to determine the gingival biotype in Chinese subjects with and without a history of periodontal disease. MATERIAL AND METHODS: Thirty periodontally healthy subjects and 20 subjects with treated chronic periodontitis were recruited. The mid-buccal gingival thickness of upper central and lateral incisors was measured by a customized caliper in all subjects. The crown length and crown width of these teeth were recorded in the healthy group, while gingival recession was measured in the periodontitis group...
June 15, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28567141/reproducibility-of-a-digital-method-to-evaluate-soft-tissue-modifications-a-study-of-inter-and-intra-operative-measurement-concordance
#8
Davide Rancitelli, Marco Cicciù, Francesco Lini, Davide Fumagalli, Anna Chiara Frigo, Carlo Maiorana
BACKGROUND: The soft tissue healing and quality around dental implant is a current debated topic in the recent literature. The free gingival margin and the quantity and quality of the mucosa around teeth and surrounding dental implants still determine the hard and soft tissue healing status. OBJECTIVE: The aim of this study is to assess inter and intra-operative measurement concordance of a method aimed at evaluating the apico-coronal migration of free gingival margin, using intra-oral photography...
2017: Open Dentistry Journal
https://www.readbyqxmd.com/read/28555208/comparison-of-immediately-loaded-flapless-placed-one-piece-implants-and-flapped-placed-conventionally-loaded-two-piece-implants-both-fitted-with-all-ceramic-single-crowns-%C3%A2-in-the-posterior-mandible-3-year-results-from-%C3%A2-a-randomised-controlled-pilot-trial
#9
RANDOMIZED CONTROLLED TRIAL
Wolfgang Bömicke, Olaf Gabbert, Andreas Koob, Johannes Krisam, Peter Rammelsberg
PURPOSE: To compare outcomes for immediately loaded one-piece implants (OPI), placed flapless, and conventionally loaded two-piece implants (TPI), placed after two-stage flapped surgery. MATERIALS AND METHODS: Thirty-eight participants were randomised to receive either one OPI (19 participants, OPI group) or one TPI (19 participants, TPI group) inserted in the posterior mandible with a torque of at least 35 Ncm according to a parallel group design. OPI were immediately loaded with non-occluding temporary crowns...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28540108/scalpel-depigmentation-and-surgical-crown-lengthening-to-improve-anterior-gingival-esthetics
#10
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
https://www.readbyqxmd.com/read/28518181/a-semi-automatic-algorithm-for-preliminary-assessment-of-labial-gingiva-and-alveolar-bone-thickness-of-maxillary-anterior-teeth
#11
Sheng-Hung Chen, Hsun-Liang Chan, Yongning Lu, Sim-Heng Ong, Hom-Lay Wang, Eng Hong Ko, Po-Chun Chang
PURPOSE: Soft and hard tissue volumes are critical for implant placement and long-term stability. Although the literature has adequately addressed tissue biotypes of Western populations, pertinent information about Asian populations is limited. This study aimed to evaluate the soft and hard tissue profiles of the maxillary anterior teeth of the Taiwanese population using a semi-automatic algorithm. MATERIALS AND METHODS: Cone beam computed tomography images of 11 adults with well-aligned maxillary anterior teeth were overlaid with those of cast models, based on the tooth crowns manually outlined by two independent observers...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28515694/fam20a-gene-mutation-amelogenesis-or-ectopic-mineralization
#12
Guilhem Lignon, Fleur Beres, Mickael Quentric, Stephan Rouzière, Raphael Weil, Muriel De La Dure-Molla, Adrien Naveau, Renata Kozyraki, Arnaud Dessombz, Ariane Berdal
Background and objective:FAM20A gene mutations result in enamel renal syndrome (ERS) associated with amelogenesis imperfecta (AI), nephrocalcinosis, gingival fibromatosis, and impaired tooth eruption. FAM20A would control the phosphorylation of enamel peptides and thus enamel mineralization. Here, we characterized the structure and chemical composition of unerupted tooth enamel from ERS patients and healthy subjects. Methods: Tooth sections were analyzed by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), X-Ray Diffraction (XRD), and X-Ray Fluorescence (XRF)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28440007/spectrophotometric-analysis-of-fluorescent-zirconia-abutments-compared-to-conventional-zirconia-abutments-a-within-subject-controlled-clinical-trial
#13
Daniel S Thoma, Felix B Gamper, Vítor M Sapata, Giuseppe Voce, Christoph H F Hämmerle, Irena Sailer
BACKGROUND: Zirconia abutments are frequently used for implant-supported single crowns. Even though demonstrating esthetic benefits compared to metal abutments, zirconia abutments lead to an increased brightness of the peri-implant mucosa compared to natural teeth and are not ideal from an esthetic point of view. PURPOSE: To test whether or not a fluorescent hybrid zirconia abutment offers superior esthetics compared to a non-fluorescent one-piece zirconia abutment based on spectrophotometric analysis...
April 24, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28434556/cad-cam-techniques-help-in-the-rebuilding-of-ideal-marginal-gingiva-contours-of-anterior-maxillary-teeth-a-case-report
#14
Jiayue Yin, Dan Liu, Yuehua Huang, Lin Wu, Xiaolin Tang
BACKGROUND AND OVERVIEW: "Pink esthetics," which are considered to be as important as "white esthetics," have attracted increasing attention. To date, clinicians rarely have applied computer-aided design and computer-aided manufacturing (CAD/CAM) techniques in the rebuilding of the contour of the marginal gingiva in the esthetic zone. CASE DESCRIPTION: In this case report, the authors describe a female patient who had gingival inflammation and an asymmetrical contour of the marginal gingiva of the anterior maxillary teeth because previously placed ceramic crowns violated the biological width...
April 20, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28431806/gender-specific-evaluation-of-variation-of-maxillary-exposure-when-smiling
#15
Niels Christian Pausch, Dimitrios Katsoulis
INTRODUCTION: Excessive exposure of maxillary teeth when smiling can have a negative effect on the aesthetics and attractiveness of the face. The presented study was aimed to evaluate the effect of different amounts of gingival exposure on the perception of such human characteristics and qualities as age, attractiveness, gender specificity, and felt sympathy in the context of the whole face. MATERIALS AND METHODS: Forty-two participants (21 female and 21 male students of Dental Medicine) were recruited as evaluators for the study...
March 27, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28383139/clinical-characteristics-of-abutment-teeth-with-gingival-discoloration
#16
Ljubisa Ristic, Dragana Dakovic, Srdjan Postic, Zoran Lazic, Miljana Bacevic, Dragana Vucevic
PURPOSE: The grey-bluish discoloration of gingiva (known as "amalgam tattoo") does not appear only in the presence of amalgam restorations. It may also be seen in cases of teeth restored with cast dowels and porcelain-fused-to-metal (PFM) restorations. The aim of this article was to determine the clinical characteristics of abutment teeth with gingival discoloration. MATERIALS AND METHODS: This research was conducted on 25 patients referred for cast dowel and PFM restorations...
April 6, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28382581/the-prominent-proteins-expressed-in-healthy-gingiva-a-pilot-exploratory-tissue-proteomics-study
#17
Emre Yaprak, Murat Kasap, Gürler Akpınar, Sibel Kayaaltı-Yüksek, Alper Sinanoğlu, Nil Guzel, Husniye Demirturk Kocasarac
Gingiva is a unique tissue which protects the underlying periodontal tissues from consistent mechanical and bacterial aggressions. Molecular analysis of gingiva is likely to improve our understanding of the underlying biological processes at work. The aim of this preliminary exploratory study is to analyze the proteomic profile of healthy gingiva and to detect prominently expressed proteins. Gingival tissue samples were obtained from periodontally healthy individuals who underwent surgical crown lengthening procedure...
April 5, 2017: Odontology
https://www.readbyqxmd.com/read/28275793/-periodontal-status-of-labially-inversely-impacted-maxillary-central-incisor-in-mixed-dentition-after-orthodontic-treatment
#18
Hui-Xi Jiang, Zhen-Sheng Cao, Hao Sun, Han Hu, Yu Fang, Rong-Dang Hu
PURPOSE: To study the periodontal status of labially inversely impacted maxillary central incisor in mixed dentition after orthodontic treatment. METHODS: Sixteen patients with labially inversely impacted maxillary central incisor in mixed dentition and treated by guided rod appliance and conventional fixed appliance were enrolled in this study. Periodontal examinations were performed and cone-beam CT (CBCT) was taken approximately 2 years post treatment. Central incisors were divided into impacted and contralateral incisor groups...
December 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28274044/increased-advanced-oxidation-protein-products-generation-by-cyclosporine-a-and-angiotensin-ii-in-human-gingival-fibroblasts-ex-vivo-study
#19
Suresh Ranga Rao, Rajasekaran Subbarayan, Supraja Ajitkumar, Dinesh Murugan Girija
INTRODUCTION: Cyclosporin-A (CsA), an immunosuppressant, induces renal fibrosis and Renin Angiotensin System (RAS) is known to play a major role. CsA has the potential to increase the oxidative stress; specifically through the Advanced Oxidation Protein Products (AOPP) which could possibly stimulate fibrosis. A similar type of pathology occurs even in the gingiva known as CsA Induced Gingival Overgrowth (CIGO). AIM: This study was undertaken to estimate the AOPP generation by Human Gingival Fibroblasts (HGF) under the influence of CsA and Angiotensin II (Ang II)...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28174363/subjective-differences-between-dentists-and-patients-about-relative-quality-of-metal-ceramic-restorations-placed-in-the-esthetic-zone
#20
Mohammed M Al Moaleem, Faisal M Alkhayrat, Hussam A Madkhali, Ibrahim H Geathy, Mohammed Aw Qahhar, Ahmed Yaqoub, Khurshid A Mattoo
INTRODUCTION: Esthetic perceptions could differ between the dentist and his patients among various regions and cultures. AIM: The aims of this study were to evaluate the subjective differences between the dentist and the patient in terms of esthetics of metal-ceramic crowns (MCcs). The study also aims to compare the mesiodistal (MD) and buccolingual (BL) dimensions of the cemented crown with its respective natural antimeric tooth. MATERIALS AND METHODS: A total of 85 patients seeking treatment for a single crown (MC) were treated by the undergraduate students under supervision of respective academic staff...
February 1, 2017: Journal of Contemporary Dental Practice
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