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Adham Elsayed, Sebastian Wille, Majed Al-Akhali, Matthias Kern
STATEMENT OF PROBLEM: The whitish color of zirconia (ZrO2) abutments offers favorable esthetics compared with the grayish color of titanium (Ti) abutments. Nonetheless, ZrO2 has greater opacity, making it difficult to achieve natural tooth color. Therefore, lithium disilicate (LaT) abutments have been suggested to replace metal abutments. PURPOSE: The purpose of this in vitro study was to evaluate the fracture strength and failure mode of single-tooth implant restorations using ZrO2 and LaT abutments, and to compare them with titanium (Ti) abutments...
October 18, 2016: Journal of Prosthetic Dentistry
Panos Papaspyridakos, Yong-Jeong Kim, Matthew Finkelman, Khaled El-Rafie, Hans-Peter Weber
PURPOSE: The primary aim of this study was to assess the accuracy of different splinting materials to make implant cast verification jigs. The secondary aim was to assess the effect of 20° implant angulation on the accuracy of casts. MATERIALS AND METHODS: An edentulous mandibular arch with five internal connection tissue level implants served as control. The three implants in the anterior region were parallel to each other and the two implants in the posterior region were distally tilted 20° bilaterally...
October 21, 2016: Journal of Esthetic and Restorative Dentistry
Maria Eduarda Assad Duarte, Ricardo Martins Machado, Andrea Fonseca Jardim da Motta, José Nelson Mucha, Alexandre Trindade Motta
OBJECTIVE: This study aimed to evaluate how different forms of incisal embrasures influence the esthetic perception of the smile, the preferences of each group of evaluators, and the influence of gingival display. MATERIAL AND METHODS: Two photographs of a broad male and female smiles were digitally manipulated to remove imperfections and asymmetries. A second manipulation was performed on the four maxillary incisors, creating 3 different forms of incisal embrasures: rounded, semi-rounded and squared...
October 21, 2016: Journal of Esthetic and Restorative Dentistry
Sami Dogan, Ariel J Raigrodski, Hai Zhang, Lloyd A Mancl
STATEMENT OF PROBLEM: Studies evaluating anterior zirconia-based crowns are limited. PURPOSE: The purpose of this prospective cohort clinical study was to assess the efficacy of zirconia-based anterior maxillary crowns with 0.3-mm customized copings at the cervical third and anatomical design elsewhere for up to 5 years of service. MATERIAL AND METHODS: Eighteen participants who required an anterior maxillary crown (n=20) and who had signed a consent form approved by the University of Washington Health Sciences Center Human Subjects Division were enrolled...
October 17, 2016: Journal of Prosthetic Dentistry
Avadhesh Kumar, Shalini Kaushal, Neelu Verma, Deepti Chandra
The treatment of gingival recession defects is indicated for esthetic and functional reasons to reduce root sensitivity, to remove muscle pull, to create or augment keratinized tissue, and to prevent disease progression. The presence of sufficient amount of periosteum adjacent to gingival recession defects makes it a suitable graft. The adult human periosteum is a highly vascular connective tissue with immense regenerative potential. It contains fibroblasts, osteogenic progenitor cells, and stem cells as a result of which it has the ability to differentiate into fibroblast, osteoblast, chondrocytes, adipocytes, and skeletal myocytes...
September 2016: Journal of Oral Biology and Craniofacial Research
Nadeemul Hoda, Aamir Malick Saifi, Girish B Giraddi
BACKGROUND: A common sequel of tooth extraction is alveolar bone resorption. It makes the placement of dental implants difficult and creates an esthetic problem for the fabrication of conventional prostheses. Therefore, alveolar bone following tooth extraction should be preserved. AIMS AND OBJECTIVES: The present prospective study was conducted to evaluate the efficacy of the resorbable bioscaffold poly lactic co-glycolic acid (PLGA) in maintaining the alveolar height in post-extraction socket...
September 2016: Journal of Oral Biology and Craniofacial Research
Ali Ebrahimi, Mohammad Hosein Kalantar Motamedi, Nasrin Nejadsarvari, Azin Ebrahimi, Hamid Reza Rasouli
OBJECTIVE: A variety of nasal skin reconstruction methods are available to meet the esthetic patient's needs. In this article, we review some of modifications of these procedures and share our experience in reconstruction of different parts of the nasal skin following skin tumor ablation. PATIENTS AND METHODS: From January 2010 to January 2014, 171 patients underwent nasal skin reconstruction after excising cancerous lesions of the involved nasal skin. The patient's history, pre- and post-operation photographs, and the surgery data were collected and assessed...
July 2016: Journal of Cutaneous and Aesthetic Surgery
Xiaona Lu, Fei Fan, Huan Wang, Jianjun You
BACKGROUND: Secondary nasal deformities and retardation of development due to treatment of nasal hemangioma during infancy are a challenge when it comes to nasal reconstruction. In order to evaluate nasal repair and reconstruction in these patients, the authors compared the ease and outcomes of using expanded forehead, nasolabial sulcus, and medial upper arm tube flaps. METHODS: According to the deformities and patients' wishes, flaps were selected; using autogeneic rib cartilage, auricle cartilage, or silica gel as a scaffold or without framework; the inner lining were made by the residual scar tissue or the distal end of transferred flap...
October 14, 2016: Journal of Craniofacial Surgery
Kun Hwang, Seong Kyung Yoo
The aim of this study was to analyze eyebrow shapes as represented in the British edition of "Vogue" over the last century (1916-2015). Photographs containing distinguishable eyebrows were selected from a book entitled "Vogue 100: A Century of Style." A total of 120 frontal pictures in which the eye and eyebrows were identifiable were included and analyzed. The relative width of the eyebrow (REW), as well as relative medial (RMH), midpupillary (RPH), and lateral (RLH) eyebrow height were measured in reference to the length of the palpebral fissure...
October 14, 2016: Journal of Craniofacial Surgery
Jinyong Cho, Jaeyoung Ryu
Blow-in fracture of the zygomaticomaxillary complex that was displaced into the orbital cavity could be associated with ophthalmologic injuries, ranging from visual acuity to ocular motility limitation. Appropriate reduction and realignment of the fractured bone is necessary as early as possible for recovery of function and esthetics. However, limitation of accessibility and visibility makes it difficult for delicate surgery and increases the risk of damage of adjacent anatomic structures, such as optic nerve and extraocular muscles...
October 14, 2016: Journal of Craniofacial Surgery
N Vaibhav, R Keerthi, Madan Nanjappa, D P Ashwin, M A Reyazulla, A L Gopinath, Abhishek Ghosh
PURPOSE: The aim of the study is to compare subciliary incision and 'sutureless' transconjunctival incision in the treatment of infraorbital rim fractures. MATERIALS AND METHOD: In this prospective study, 40 patients with fractures of the infraorbital rim were selected and divided into 2 groups using random sampling technique. Group A patients were treated using 'sutureless' transconjunctival technique and group B patients were treated using subciliary approach...
September 2016: Journal of Maxillofacial and Oral Surgery
Sachiko Maeda, Takeshi Sasaki
In adult interdisciplinary treatments with using dental implants, limited orthodontic treatment, especially orthodontic extrusion (OE), offers many benefits by both correcting teeth alignment and by contributing to the regeneration of periodontal tissues. However, orthodontic procedures carry some risks and unpredictabilities that might compromise tooth and/or periodontal tissue health. Especially in complex cases, it is difficult to decide which orthodontic treatment modalities should be combined, in what sequences they should be applied, and what their force systems and treatment times are...
December 2015: Int J Implant Dent
Federico Gelpi, Daniele De Santis, Simone Marconcini, Francesco Briguglio, Marco Finotti
This clinical report illustrates a multidisciplinary approach for the rehabilitation of a young adult patient affected by a bilateral edentulous space and an anterior deep bite. The patient required orthodontics and surgical corticotomy and implantology (both performed with a piezo device). A multidisciplinary planning approach, including orthodontics, oral and periodontic surgery, and restorative dentistry, has an important role in the final outcome of treatment. In fact a dental class I occlusion has been established only on the right side...
December 2015: Int J Implant Dent
Elise G Zuiderveld, Henny J A Meijer, Arjan Vissink, Gerry M Raghoebar
Single immediate implant replacement is accompanied by excellent survival rates and a favorable esthetic outcome. The objective of this report was to describe a surgical approach for removal of a buccal or palatally located impacted secondary canine, combined with extraction of the failing primary canine, and immediate placement and provisionalization of an implant. A window technique was applied for surgical removal of the impacted canine. The alveolar crest was preserved. After extraction of the primary canine, the implant was inserted with primary stability...
December 2015: Int J Implant Dent
Masayuki Fukuda, Satoru Matsunaga, Kento Odaka, Yuuya Oomine, Masaaki Kasahara, Masahito Yamamoto, Shinichi Abe
BACKGROUND: The purpose of this study was to reveal the structural properties that need to be considered in dental implant treatment by investigating differences between dentulous and edentulous maxillae in the three-dimensional (3D) microstructure of the incisive canals (ICs) and their surrounding bone. METHODS: A total of 40 maxillary bones comprising 20 dentulous maxillae and 20 edentulous maxillae were imaged by micro-CT for 3D observation and measurement of the IC and alveolar bone in the anterior region of the IC...
December 2015: Int J Implant Dent
Kirsten W Slagter, Gerry M Raghoebar, Arjan Vissink, Henny J A Meijer
BACKGROUND: Sufficient buccal bone is important for optimal esthetic results of implant treatment in the anterior region. It can be measured with cone beam computed tomography (CBCT), but background scattering and problems with standardization of the measurements are encountered. The aim was to develop a method for reliable, reproducible measurements on CBCTs. METHODS: Using a new method, buccal bone thickness was measured on ten CBCTs at six positions along the implant axis...
December 2015: Int J Implant Dent
Lokendra Gupta, Parul Pujary, Priyanka Agarwal
An adhesion is a band of scar tissue that binds two parts of the tissue together, which develops when the body's repair mechanisms respond to any tissue disturbance, such as surgery, infection, trauma, or radiation. Prevention of unwanted scar bands is of utmost importance to develop esthetic and healthy tissue. This article describes a technique to prevent the adhesion of the surgically reconstructed ear lobule with facial skin, using novel lobule separator prosthesis.
October 2016: Journal of Indian Prosthodontic Society
Brajendra S Tomar, G S Chandu, Shubhra Singh, Manish Goutam
The positive psychological effects of improving patients' smile often contribute to an improved self-image and enhanced self-esteem. Periodontal disease may lead to tooth and tissue loss that can result in esthetic problems. Combined periodontal/prosthodontic treatment for patients with advanced disease is well documented. This case report illustrates a method of treatment for an advanced tissue loss in an esthetic area using a removable silicone gingival prosthesis/mask.
October 2016: Journal of Indian Prosthodontic Society
Sharad Gupta, Akshay Bhargava, Praful Mehra
Rehabilitation of mandibular resection poses functional, esthetic, and psychological challenges. The deviation and rotation of the mandible toward the resected side leaves the patient with almost no option of chewing. This is aggravated if the patient is edentulous. The case report discussed in this article was an edentulous patient taken up with the primary goal to limit deviation toward resected side and provide a stable and retentive prosthesis to the patient. Two implants were placed anteriorly, splinted with bar and clip supported superstructure...
October 2016: Journal of Indian Prosthodontic Society
Vinayak S Gowda, Dhruv Anand, Manoj Kumar Sundar, Agnelo Michael Reveredo, Shilpa Shetty
Dental implants with their increasing success rates and predictability of final outcome are fast becoming the treatment of choice for replacing missing teeth. Considering the success of immediate implant placement in reducing tissue loss and achieving good esthetic results, is making it a more popular treatment modality in implant dentistry. Understanding the management of gingival tissues in relation to implants to obtain maximum esthetics is of utmost importance. The use of provisional abutments and immediate temporization has a proven track record of their ability to produce optimal esthetics and to guide the tissue response during the healing phase...
October 2016: Journal of Indian Prosthodontic Society
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