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https://www.readbyqxmd.com/read/27881321/a-digital-approach-integrating-facial-scanning-in-a-cad-cam-workflow-for-complete-mouth-implant-supported-rehabilitation-of-patients-with-edentulism-a-pilot-clinical-study
#1
Bassam Hassan, Beatriz Gimenez Gonzalez, Ali Tahmaseb, Marcus Greven, Daniel Wismeijer
STATEMENT OF PROBLEM: Complete-mouth implant-supported rehabilitations are challenging because of the multiple surgical and prosthetic steps involved in clinical evaluations to assure passive prosthesis fit and optimal esthetic and functional outcomes. As a result, these rehabilitations are usually associated with substantial clinical time, patient discomfort, and high treatment cost. PURPOSE: The purpose of this pilot clinical study was to evaluate a novel digital approach integrating digital intraoral dental and extraoral facial scanning information to design and mill a computer-aided design and computer-aided manufacturing (CAD-CAM) implant-retained prosthesis for patients with complete edentulism...
October 27, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27866699/recording-the-trajectory-of-mouth-opening-and-closing-for-the-fabrication-of-an-occlusal-splint
#2
Jong-Eun Kim, Joo Hyun Kwon, Jee-Hwan Kim, June-Sung Shim
Various attempts have been made to transfer the transverse hinge axis and mandibular movement pattern to the mechanical articulator and to fabricate dental prostheses with the fewest errors. However, the occlusal adjustment of a dental prosthesis is always necessary to ensure a precise intraoral fit even when the facebow transfer technique is used in the cast mounting procedure. This is because the true hinge axis is not obtained when the facebow is applied to a patient who exhibits a variable mandible movement pattern rather than a single rotational axis...
November 17, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27843356/virtual-surgical-planning-and-3d-printing-in-prosthetic-orbital-reconstruction-with-percutaneous-implants-a-technical-case-report
#3
Yu-Hui Huang, Rosemary Seelaus, Linping Zhao, Pravin K Patel, Mimis Cohen
Osseointegrated titanium implants to the cranial skeleton for retention of facial prostheses have proven to be a reliable replacement for adhesive systems. However, improper placement of the implants can jeopardize prosthetic outcomes, and long-term success of an implant-retained prosthesis. Three-dimensional (3D) computer imaging, virtual planning, and 3D printing have become accepted components of the preoperative planning and design phase of treatment. Computer-aided design and computer-assisted manufacture that employ cone-beam computed tomography data offer benefits to patient treatment by contributing to greater predictability and improved treatment efficiencies with more reliable outcomes in surgical and prosthetic reconstruction...
2016: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/27836445/-masticatory-system-and-maxillofacial-prosthesis-from-pathology-to-function-recovering
#4
S Vo Quang, J Dichamp
Maxillofacial prosthesis (MFP) can be defined as the art and science of esthetic and functional reconstruction of the facial bones, art because it uses hand-crafted and empirical rules, science because of its technical rigorism and its integration in medicine. MFP aims to multidisciplinary rehabilitate patients presenting with cutaneous and underlying structures defects, It also allows for functional speech and swallowing rehabilitation related to temporo-mandibular joint disorders. Whatever the origin, (traumatic, infectious ortumoral), surgical treatment of these TMJ disorders is usually not indicated in first-line...
November 8, 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
https://www.readbyqxmd.com/read/27774442/the-sequential-management-of-recurrent-temporomandibular-joint-ankylosis-in-a-growing-child-a-case-report
#5
Jung-Won Cho, Jung-Hyun Park, Jin-Woo Kim, Sun-Jong Kim
BACKGROUND: Temporomandibular joint (TMJ) ankylosis in children often leads to facial deformity, functional deficit, and negative influence of the psychosocial development, which worsens with growth. The treatment of TMJ ankylosis in the pediatric patient is much more challenging than in adults because of a high incidence of recurrence and unfavorable growth of the mandible. CASE REPORT: This is a case report describing sequential management of the left TMJ ankylosis resulted from trauma in early childhood...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27755437/ocular-reconstruction-using-bone-anchored-implants-in-irradiated-facial-deformities-after-tumor-extirpation
#6
Mansher Singh, Raquel Minasian, Matthew Jackson, E J Caterson
BACKGROUND: Surgical resection of ocular malignancies can result in complex craniofacial defects that can be difficult to reconstruct with conventional reconstruction techniques. Craniofacial prosthesis supported by bone-anchored implants has evolved as a reliable alternative in such scenarios. METHODS: The authors describe a patient who underwent extensive facial resection secondary to squamous cell carcinoma resulting in significant facial deformities. A bone-anchored osseointegrated implant was used to perform facial reconstruction...
October 14, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27746608/lobule-separator-prosthesis-to-prevent-adhesion-of-reconstructed-ear-lobe
#7
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
https://www.readbyqxmd.com/read/27712824/the-evolution-of-complex-microsurgical-midface-reconstruction-a-classification-scheme-and-reconstructive-algorithm
#8
Daniel Alam, Yaseen Ali, Christopher Klem, Daniel Coventry
Orbito-malar reconstruction after oncological resection represents one of the most challenging facial reconstructive procedures. Until the last few decades, rehabilitation was typically prosthesis based with a limited role for surgery. The advent of microsurgical techniques allowed large-volume tissue reconstitution from a distant donor site, revolutionizing the potential approaches to these defects. The authors report a novel surgery-based algorithm and a classification scheme for complete midface reconstruction with a foundation in the Gillies principles of like-to-like reconstruction and with a significant role of computer-aided virtual planning...
November 2016: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/27699895/influence-of-abutment-material-on-peri-implant-soft-tissues-in-anterior-areas-with-thin-gingival-biotype-a-multicentric-prospective-study
#9
Diego Lops, Edoardo Stellini, Luca Sbricoli, Niccolò Cea, Eugenio Romeo, Eriberto Bressan
PURPOSE: The aim of the present clinical trial was to analyze, through spectrophotometric digital technology, the influence of the abutment material on the color of the peri-implant soft tissue in patients with thin gingival biotype. MATERIAL AND METHODS: Thirty-seven patients received an endosseous dental implant in the anterior maxilla. At time of each definitive prosthesis delivery, an all-ceramic crown has been tried on gold, titanium and zirconia abutment. Peri-implant soft-tissue color has been measured through a spectrophotometer after the insertion of each single abutment...
October 3, 2016: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27698872/radial-forearm-and-forehead-flap-reconstruction-following-resection-of-a-nasal-arteriovenous-malformation-a-case-report
#10
Chih-Shin Lin, Yung-Song Lin, Bor-Shyh Lin, Ching-Feng Lien, Ching-Feng Liu
Arteriovenous malformation (AVM) is a structural vascular abnormality in which the arterial vasculature connects with the venous vasculature without capillary connections. AVM confined to the nasal cavity is considerably rare. Blurred vision can be one of the associated symptoms. A combined approach of complete surgical resection with prior superselective embolization is the treatment of choice. Following resection, the reconstruction of facial defects, particularly in the nasal area, is challenging. The present study reports the rare case of a patient with an AVM in the nasal cavity, in which embolization, resection and flap reconstruction were performed...
October 2016: Oncology Letters
https://www.readbyqxmd.com/read/27690364/maximum-bite-force-of-edentulous-patients-before-and-after-dental-implant-rehabilitation-long-term-follow-up-and-facial-type-influence
#11
Ana Cláudia M Melo, Ingrid M Ledra, Rogéria A Vieira, Edivaldo R Coró, Ivete Aparecida de M Sartori
PURPOSE: (1) To evaluate patients' long-term maximum bite force (MBF) after rehabilitation with mandibular implant-supported prosthesis, (2) to assess the influence of facial pattern in MBF, and (3) to evaluate the relation between the dominant chewing side and MBF. MATERIALS AND METHODS: Twenty-nine patients were selected. Pre- (T0) and immediate post-rehabilitation (T1) data of MBF were collected. In a follow-up visit 3 to 5 years after rehabilitation (T2), 24 patients participated...
September 30, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/27618726/surgical-preparation-of-nasal-defects-to-enhance-the-implant-retained-facial-prostheses-a-case-report
#12
Theresa M Hofstede, Rhonda F Jacob, Patricia Montgomery, Peggy Wesley
BACKGROUND: Skin cancers requiring nasal resection may be surgically reconstructed and/or prosthetically reconstructed. Singular surgical reconstruction may be ideal for smaller defects in which the nasal bone and cartilaginous portions of the nose are maintained, but surgical reconstruction falls short of providing acceptable aesthetic results for more extensive nasal defects. Prosthetic rehabilitation, or a combination of surgical and prosthetic rehabilitation, is more appropriate for larger defects, but prosthesis retention can be challenging when adhesives are required on adjacent mobile and secreting skin...
September 12, 2016: Head & Neck
https://www.readbyqxmd.com/read/27607120/a-novel-single-staged-technique-for-the-treatment-of-soft-tissue-in-an-oblique-facial-cleft
#13
Mona Ascha, Donald Harvey, Devra Becker, David Rowe, Hiteswar Sarma, Gregory E Lakin
INTRODUCTION: Oblique facial clefts are extremely rare and cause significant morbidity. Treatment of these clefts is complex and requires a fundamental understanding of cleft classification and techniques used for treatment of clefts. METHODS: We describe a novel single-staged technique to repair the Tessier no. 4 soft tissue cleft and reconstruct the buccal sulcus and bilaminar lower eyelid by preserving normally excised tissue combined with standard procedures...
September 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27591092/survival-and-complications-of-implants-to-support-craniofacial-prosthesis-a-systematic-review
#14
Bruno Ramos Chrcanovic, Johanna Nilsson, Andreas Thor
OBJECTIVE: To assess the survival rate of craniofacial implants (CIs) to support facial prosthesis/epithesis and the prevalence of surgical/biological complications based on previously published studies. METHODS: An electronic search was undertaken in March/2016. Only studies with a minimum of 5 patients were included. Untransformed proportions of implant failures for different regions were calculated. A meta-analysis evaluated the influence of radiotherapy on the failure rates...
August 6, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27570943/retrospective-2-to-7-year-follow-up-study-of-20-double-full-arch-implant-supported-monolithic-zirconia-fixed-prostheses-measurements-and-recommendations-for-optimal-design
#15
Fernando Rojas Vizcaya
PURPOSE: To measure the extension of cantilever lengths, thicknesses, and heights of zirconia prostheses in the lingual and facial areas of the distal screw access openings, and to evaluate the clinical performance regarding chipping or fracture of the distal cantilevered sections of double full-arch CAD/CAM screw-retained, stained, monolithic zirconia, gingival-colored ceramic implant-supported fixed prostheses (MZ-FPs). MATERIALS AND METHODS: Ten edentulous patients were provided with a total of 20 CAD/CAM double full-arch MZ-FPs...
August 29, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/27536331/fabrication-of-a-cranial-prosthesis-combined-with-an-ocular-prosthesis-using-rapid-prototyping-a-case-report
#16
Gayatri Shankaran, Suryakant Chhagan Deogade, Rajesh Dhirawani
Rapid prototyping (RP) is a technique of manufacturing parts by the additive layer manufacturing technology; where, a three-dimensional (3D) model created in a computer aided design (CAD) system is sectioned into 2D profiles, which are further constructed by RP layer by layer. Its use is not limited to industrial or engineering fields and has extended to the medical field for the manufacturing of custom implants and prostheses, the study of anatomy and surgical planning. Nowadays, dentists are more frequently encountered with the individuals affected with craniofacial defects due to trauma...
January 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/27522706/-treatment-of-patients-with-isolated-orbital-wall-injuries
#17
A P Bakushev, K A Sivolapov
OBJECTIVE: to optimize surgical treatment in patients with orbital wall defects and deformities. MATERIAL AND METHODS: For diagnosis of orbital wall injuries, the patients underwent facial skeletal X-ray study in the semiaxial projection and midfacial spiral computed tomography. Defects were removed via the intrasinus approach in the victims, by applying a combined prosthesis designed at the Department of Oral Surgery and General Dentistry, Novokuznetsk State Institute for Postgraduate Training of Physicians...
March 2016: Vestnik Rentgenologii i Radiologii
https://www.readbyqxmd.com/read/27503126/rehabilitation-of-atrophic-anophthalmic-cavity-with-orthostatic-ocular-prosthesis-a-clinical-report
#18
C F Amaral, J M Cordeiro, T C S Emídio, A G C Presotto, C M R Barbosa
The absence of the eyeball can generate psychosocial and facial harmony changes, such as atrophy of the muscles around it. In these cases, the use of an orthostatic prosthesis with expanding function fosters distension of the tissues for subsequent rehabilitation. This technique consists of making individual ocular prostheses with gradual enlargement of size. The aim of this following clinical report was to describe the technique used in the standing prosthetic rehabilitation of a patient, 73 years old, who underwent enucleation of the right eye as a result of glaucoma...
October 2016: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/27487617/tmj-ankylosis-management-with-reconstruction-and-interpositional-arthroplasty
#19
Singh Madhumati, R Shruthi, Sojitra Mitul, Abhishek Karan, Abdul Aziz
Temporomandibular joint (TMJ) ankylosis is a very desolating structural condition that involves fusion of the mandibular condyle to the base of the skull. It causes difficulty in mastication and breathing. Trauma and Infections are usually responsible. If trauma occurs in young age, it leads to disturbance in growth & facial asymmetry. Treatment of temporomandibular joint (TMJ) ankylosis usually requires adequate excision of the involved ankylotic block (arthroplasty) or interpositional arthroplasty using autogenous or alloplastic materials...
October 2015: Nigerian Journal of Medicine: Journal of the National Association of Resident Doctors of Nigeria
https://www.readbyqxmd.com/read/27469566/lights-and-shadows-of-bone-augmentation-in-severe-resorbed-mandible-in-combination-with-implant-dentistry
#20
A Baj, V Sollazzo, D Lauritano, V Candotto, G E Mancini, A B Gianni
Edentulous mandible frequently undergoes severe bone atrophy with problems of prosthetic instability. Instability of the lower denture may cause difficulties with eating and speech, ulcerations of the oral mucosa for lower denture trauma, loss of facial vertical dimension. These problems may be solved by bone augmentation of severe resorption of edentulous mandible. The aim of this short review is to describe surgical techniques for bone augmentation of the severe resorption of edentulous mandible. In this paper, we define a severe resorption of edentulous mandible as a mandibular height in the symphyseal area of 12 mm or less as measured on a standardized lateral cephalogram...
April 2016: Journal of Biological Regulators and Homeostatic Agents
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