scholarly journals Aesthetic and functional rehabilitation in a patient with anterior skeletal open bite using lithium dissilicate glass-reinforced ceramic: a case report

2022 ◽  
Vol 11 (1) ◽  
pp. e35211120077
Author(s):  
Karen Katlein Dolenkei ◽  
Lucas do Nascimento Tavares ◽  
Denildo de Magalhães ◽  
Luís Henrique Araújo Raposo
Keyword(s):  
Lithium Disilicate ◽  
Resin Cement ◽  
Open Bite ◽  
Radiographic Examination ◽  
Clinical Report ◽  
Anterior Open Bite ◽  
Functional Rehabilitation ◽  
Metal Ceramic ◽  
Ceramic Crowns ◽  
School Of Dentistry

The aim of this clinical report is to present the replacement of unsatisfactory metal-ceramic crowns of elements 12, 11, 21 and 22, by lithium disilicate glass-reinforced ceramic crowns in a patient with skeletal anterior open bite. A patient sought care at the Dental Hospital at the School of Dentistry of UFU, complaining of odor between the metal-ceramic crowns of the antero-superior teeth. After clinical and radiographic examination, invasion of the biological space was noticed, surgery was indicated in order to restore the biological space. After healing, the pre-existing cast metal posts were masked using an opaque composite resin and the teeth were reprepared for full all-ceramic crowns. Impressions were taken in two steps, using PVS associated to retraction cords. The ceramic copings were obtained in lithium disilicate ceramic, and the veneering was performed by stratification. After testing the ceramics crowns in relation to, fit, function and aesthetic results, cementation was completed using modified absolute isolation, followed by prophylaxis of preparations with pumice and saline, surface treatment of the ceramic restorations and luting using self-adhesive resin cement. Finally, an occlusal splint was produced to control the effects of bruxism and orofacial pain symptoms. The anterior open skeletal bite was a challenging factor for the rehabilitation of this patient; however, one must consider the entire process that the patient would undergo if choosing for orthognathic surgery, and the patient should be aware of the case limitations. In addition, the use of lithium disilicate glass-reinforced ceramics proved the versatility of this material for anterior aesthetic restorations.

Oral Rehabilitation of Severe Dentoalveolar Trauma: A Clinical Report

2012 ◽  
Vol 38 (6) ◽  
pp. 757-761 ◽  
Author(s):  
Fonda G. Robinson ◽  
Larry L. Cunningham
Keyword(s):  
Clinical Examination ◽  
Motor Vehicle ◽  
Motor Vehicle Accident ◽  
Clinical Report ◽  
Oral Rehabilitation ◽  
Endosseous Implants ◽  
Vehicle Accident ◽  
Metal Ceramic ◽  
Dentoalveolar Trauma ◽  
Ceramic Crowns

This clinical report describes the oral rehabilitation of an adult male who suffered severe dentoalveolar trauma as a result of a motor vehicle accident. The specific objectives of this treatment were to restore esthetics and masticatory function. Treatment included removal of fractured roots, placement of multiple endosseous implants, and placement of anterior and posterior metal-ceramic crowns and fixed partial dentures. Three year clinical examination revealed no pathology associated with the rehabilitation. The patient's esthetic and functional expectations were successfully achieved.

Premolar Axial Wall Height Effect on CAD/CAM Crown Retention

2016 ◽  
Vol 41 (6) ◽  
pp. 666-671 ◽  
Author(s):  
C Gillette ◽  
R Buck ◽  
N DuVall ◽  
S Cushen ◽  
M Wajdowicz ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Lithium Disilicate ◽  
Resin Cement ◽  
Failure Resistance ◽  
All Ceramic ◽  
Computer Aided ◽  
Cad Cam ◽  
Ceramic Crowns ◽  
Aided Design ◽  
Post Hoc

SUMMARY Objective: To evaluate the significance of reduced axial wall height on retention of adhesively luted, all-ceramic, lithium disilicate premolar computer-aided design/computer-aided manufacturing (CAD/CAM) crowns based on preparations with a near ideal total occlusal convergence of 10°. Methods: Forty-eight recently extracted premolars were randomly divided into four groups (n=12). Each group received all-ceramic CAD/CAM crown preparations featuring axial wall heights of 0, 1, 2, and 3 mm, respectively, all with a 10° total occlusal convergence. Scanned preparations were fitted with lithium disilicate all-ceramic crowns that were luted with a self-etching resin cement. Specimens were tested to failure at a 45° angle to the tooth long axis with failure load converted to megapascals (MPa) based on the measured bonding surface area. Mean data were analyzed using analysis of variance/Tukey's post hoc test (α=0.05). Results: Lithium disilicate crowns adhesively luted on preparations with 0 axial wall height demonstrated significantly less failure resistance compared with the crowns luted on preparations with axial wall heights of 1 to 3 mm. There was no failure stress difference between preparations with 1 to 3 mm axial wall height. Conclusions: Under conditions of this study, adhesively luted lithium disilicate bicuspid crowns with a total occlusal convergence of 10° demonstrated similar failure resistance independent of axial wall height of 1 to 3 mm. This study provides some evidence that adhesion combined with an ideal total occlusal convergence may compensate for reduced axial wall height.

scholarly journals Multiloop edgewise archwire treatment for a patient with a severe anterior open bite and amelogenesis imperfecta

2021 ◽  
Author(s):  
Ahmed I. Masoud ◽  
T. Peter Tsay
Keyword(s):  
Open Bite ◽  
Amelogenesis Imperfecta ◽  
Radiographic Examination ◽  
Orthodontic Appliances ◽  
Plane Angle ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Anterior Teeth ◽  
Mandibular Plane ◽  
Mandibular Plane Angle

ABSTRACT Amelogenesis imperfecta is a rare hereditary disorder that affects dental enamel and is often associated with an anterior open bite. Orthodontic treatment of a 16-year-old female patient with hypocalcified amelogenesis imperfecta and a 9-mm anterior open bite was presented. Radiographic examination revealed a steep mandibular plane angle, an increased lower face height, a Class II skeletal pattern, and a convex profile. Additionally, the patient had stainless steel crowns on all upper and lower posterior teeth and composite veneers on the upper anterior teeth. The patient was treated nonsurgically using a multiloop edgewise archwire (MEAW). MEAW mechanics allowed for successful correction of the anterior open bite, with significant reduction in the mandibular plane angle and improvement in the patient's profile. No fixed retainers were used, results remained stable 78 months after removal of orthodontic appliances. MEAW mechanics should be considered for patients with large anterior open bites, although this technique requires excellent patient compliance.

Do resin cement viscosity and ceramic surface etching influence the fatigue performance of bonded lithium disilicate glass-ceramic crowns?

2021 ◽  
Author(s):  
Kiara Serafini Dapieve ◽  
Gabriel Kalil Rocha Pereira ◽  
Andressa Borin Venturini ◽  
Natália Daudt ◽  
André Valcanaia ◽  
...  
Keyword(s):  
Glass Ceramic ◽  
Lithium Disilicate ◽  
Resin Cement ◽  
Fatigue Performance ◽  
Ceramic Surface ◽  
Surface Etching ◽  
Ceramic Crowns

scholarly journals Dental and skeletal components of Class II open bite treatment with a modified Thurow appliance

2014 ◽  
Vol 19 (1) ◽  
pp. 19-25 ◽  
Author(s):  
Helder Baldi Jacob ◽  
Ary dos Santos-Pinto ◽  
Peter H. Buschang
Keyword(s):  
Class Ii ◽  
Open Bite ◽  
Control Group ◽  
State University ◽  
Plane Angle ◽  
Anterior Open Bite ◽  
Skeletal Changes ◽  
Mandibular Plane ◽  
School Of Dentistry ◽  
Experimental Group

INTRODUCTION: Due to the lack of studies that distinguish between dentoalveolar and basal changes caused by the Thurow appliance, this clinical study, carried out by the School of Dentistry - State University of São Paulo/Araraquara, aimed at assessing the dental and skeletal changes induced by modified Thurow appliance. METHODS: The sample included an experimental group comprising 13 subjects aged between 7 and 10 years old, with Class II malocclusion and anterior open bite, and a control group comprising 22 subjects similar in age, sex and mandibular plane angle. Maxillary/mandibular, horizontal/vertical, dental/skeletal movements (ANS, PNS, U1, U6, Co, Go, Pog, L1, L6) were assessed, based on 14 landmarks, 8 angles (S-N-ANS, SNA, PPA, S-N-Pog, SNB, MPA, PP/MPA, ANB) and 3 linear measures (N-Me, ANS-Me, S-Go). RESULTS: Treatment caused significantly greater angle decrease between the palatal and the mandibular plane of the experimental group, primarily due to an increase in the palatal plane angle. ANB, SNA and S-N-ANS angles significantly decreased more in patients from the experimental group. PNS was superiorly remodeled. Lower face height (ANS-Me) decreased in the experimental group and increased in the control group. CONCLUSIONS: The modified Thurow appliance controlled vertical and horizontal displacements of the maxilla, rotated the maxilla and improved open bite malocclusion, decreasing lower facial height.

Gingival pigmentation by Ni-Cr-based metal ceramic crowns: A clinical report

2016 ◽  
Vol 115 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Min Tian ◽  
Sai Ma ◽  
Lina Niu ◽  
Jihua Chen
Keyword(s):  
Clinical Report ◽  
Metal Ceramic ◽  
Ceramic Crowns

scholarly journals Diffuse gingival enlargement with stromal calcifications occurring in a background of amelogenesis imperfecta - An oral medicine case book

2020 ◽  
Vol 75 (8) ◽  
pp. 450-453
Author(s):  
Eric Heyl ◽  
Liam Robinson ◽  
Leande Kotze ◽  
Willie FP Van Heerden
Keyword(s):  
Open Bite ◽  
Amelogenesis Imperfecta ◽  
Radiographic Examination ◽  
Enamel Hypoplasia ◽  
Oral Medicine ◽  
Anterior Open Bite ◽  
Gingival Enlargement ◽  
Gingival Fibromatosis ◽  
Clinical Differential Diagnosis ◽  
Maxilla And Mandible

A 12-year-old female patient presented with diffusely enlarged fibrous gingivae, enamel hypoplasia, an anterior open bite and impacted permanent maxillary canines (Figures 1-4). The patient's mother reported that the child had an unremarkable medical history and was currently not taking any medications. Radiographic examination showed features of amelogenesis imperfecta affecting all erupted teeth and the impacted permanent maxillary canines (Figure 4). The clinical differential diagnosis included hereditary gingival fibromatosis or diffuse peripheral odontogenic fibromas involving both the maxilla and mandible. Gin-givectomies from the anterior maxillary and mandibular regions were performed and submitted for histological assessment.

scholarly journals Multidisciplinary Management of a Child with Severe Open Bite and Amelogenesis Imperfecta

2013 ◽  
Vol 14 (2) ◽  
pp. 320-326 ◽  
Author(s):  
Catherine Millet ◽  
Jean-Pierre Duprez
Keyword(s):  
Treatment Plan ◽  
Genetic Disorder ◽  
Interdisciplinary Approach ◽  
Open Bite ◽  
Amelogenesis Imperfecta ◽  
Long Term Results ◽  
Clinical Report ◽  
Multidisciplinary Management ◽  
Anterior Open Bite ◽  
Tooth Structure

ABSTRACT Aim To present a case of multidisciplinary management and fixed rehabilitation of a young girl with amelogenesis imperfecta (AI), a severe open bite and occlusal instability. Background AI is a genetic disorder characterized by enamel malformations, disturbances in tooth eruption and significant attrition. Early diagnosis is essential, since rapid breakdown of tooth structure may occur, giving rise to acute symptoms and complicated treatment. As AI is frequently accompanied by unesthetic appearance, open bite deformity and malocclusion, a multidisciplinary approach is often required. Case report This clinical report describes the condition and presents the case of a 10-year-old girl with hypocalcified form of AI. Orthodontic treatment and orthognathic surgery were performed as part of the prosthetic treatment plan to achieve acceptable and durable results. They consisted of correcting class II, posterior crossbite and anterior open bite with a fixed orthodontic appliance, Lefort I osteotomy, bilateral mandibular ramus osteotomy and genioplasty. Prosthodontics treatment consisted of metal-ceramic crowns with low-fusing ceramic for good long-term results. No deterioration in the rehabilitation was found after 5 years of follow-up. Conclusion Complete restoration of severe AI is a long and complex process generally extending over several years. Clinical significance This article shows the important role of interdisciplinary approach to treating a patient with AI over a period of 8 years. How to cite this article Millet C, Duprez JP. Multidisciplinary Management of a Child with Severe Open Bite and Amelogenesis Imperfecta. J Contemp Dent Pract 2013;14(2): 320-326.

scholarly journals In vitro evaluation of microleakage of various types of dental cements

2010 ◽  
Vol 138 (3-4) ◽  
pp. 143-149 ◽  
Author(s):  
Vesna Medic ◽  
Kosovka Obradovic-Djuricic ◽  
Slobodan Dodic ◽  
Renata Petrovic
Keyword(s):  
Methylene Blue ◽  
Glass Ionomer Cement ◽  
Resin Cement ◽  
Glass Ionomer ◽  
Cement Interface ◽  
All Ceramic ◽  
Metal Ceramic ◽  
Ceramic Crowns ◽  
Ceramic Crown

Introduction. Microleakage is defined as the clinically undetectable seepage of oral fluids containing bacteria and debris between cement layer and tooth restoration. Objective. This in vitro study investigated the effect of different dental cements (zinc-phosphate, polycarboxylate, glass-ionomer and resin cement) on microleakage in different ceramic crown systems (metal ceramic crown, metal ceramic crown with a porcelain margin, Empress 2 and In Ceram all-ceramic crowns) fixed on extracted human teeth. Methods. One hundred and sixty intact human premolars were randomized to four groups of forty teeth each, according to the different ceramic crown systems. They were prepared in a standardized manner for metal-ceramic and all-ceramic crowns. Crowns were made following a standard laboratory technique, and each group of crowns were divided into four groups according to the different cement agents and cemented on their respective abutments. The specimens were subjected to thermocycling, placed in methylene blue solutions, embedded in resin blocks and vertically cut in the bucco-oral and meso-distal direction. The microleakage in the area of tooth-cement interface was defined as linear penetration of methylene blue and was determined with a microscope to assign microleakage scores using a five-point scale. Results. A significant association was found between a cement type and degree of microleakage (p=0.001). No statistically significant differences were found among the different ceramic crown systems luted with the same dental cement. The smallest degree of microleakage was observed in specimens luted with resin cement (X=1.73), followed by glass-ionomer cement (X=2.45) and polycarboxylate cement (X=3.20). The greatest degree of microleakage was detected in the crowns fixed with zincphosphate cement (X=3.33). Conclusion. The investigated dental cements revealed different sealing abilities. The use of resin cement resulted in the percentage of 0 microleakage scores. Due to this feature, the resin cement is to be recommended in everyday clinical practice.

scholarly journals Bonding All-Ceramic Restorations with Two Resins Cement Techniques: A Clinical Report of Three-Year Follow-Up

2011 ◽  
Vol 05 (04) ◽  
pp. 478-485 ◽  
Author(s):  
Rodolfo Bruniera Anchieta ◽  
Eduardo Passos Rocha ◽  
Erika Oliveira de Almeida ◽  
Amilcar Chagas Freitas Junior ◽  
Ana Paula Martini
Keyword(s):  
Wide Spectrum ◽  
Resin Cement ◽  
Clinical Report ◽  
Finish Line ◽  
Adhesive Resin ◽  
Luting Cements ◽  
Luting Cement ◽  
All Ceramic ◽  
Ceramic Crowns

ABSTRACTCeramics have been widely used for esthetic and functional improvements. The resin cement is the material of choice for bonding ceramics to dental substrate and it can also dictate the final esthetic appearance and strength of the restoration. The correct use of the wide spectrum of resin luting agents available depends on the dental tooth substrate. This article presents three-year clinical results of a 41 years old female patient B.H.C complaining about her unattractive smile. Two all-ceramic crowns and two laminates veneers were placed in the maxillary incisors and cemented with a self-adhesive resin luting cement and conventional resin luting cement, respectively. After a three-year follow-up, the restorations and cement/teeth interface were clinically perfect with no chipping, fractures or discoloration. Proper use of different resin luting cements shows clinical appropriate behavior after a three-year follow-up. Self-adhesive resin luting cement may be used for cementing all-ceramic crowns with high predictability of success, mainly if there is a large dentin surface available for bonding and no enamel at the finish line. Otherwise, conventional resin luting agent should be used for achieving an adequate bonding strength to enamel. (Eur J Dent 2011;5:478-485)

Sign in / Sign up

Export Citation Format

Share Document