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Maxillary fractures

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https://www.readbyqxmd.com/read/29143388/in-vitro-assessment-of-retention-and-resistance-failure-loads-of-teeth-restored-with-a-complete-coverage-restoration-and-different-core-materials
#1
Vasileia Tsiagali, Yvoni Kirmanidou, Argirios Pissiotis, Konstantinos Michalakis
PURPOSE: To investigate in vitro the retention and the resistance form, as well as the failure modes of maxillary premolars restored with cast metal crowns and different core materials. MATERIALS AND METHODS: Sixty human extracted maxillary premolars were selected according to their size and were embedded in PMMA resin blocks. After removing a part of their clinical crowns, the teeth were randomly divided into 3 groups of 20 teeth and were either left unrestored, or they were restored with amalgam or composite resin...
November 16, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29140379/seven-year-follow-up-of-full-arch-prostheses-supported-by-four-implants-a-prospective-study
#2
Karen Vaz Ayub, Eduardo Antônio Ayub, Accácio Lins do Valle, Gerson Bonfante, Thiago Pegoraro, Luiz Fernando
PURPOSE: To evaluate biologic and prosthetic outcomes of implant-supported mandibular full-arch fixed prostheses treated with the All-on-4 treatment concept after 7 years. MATERIALS AND METHODS: Patients were selected to receive full-arch fixed immediate prostheses supported by four implants up to 72 hours after surgery. The following biologic aspects were evaluated: Plaque Index (PI) and Bleeding Index (BI), implant stability by resonance frequency, and marginal bone loss (MBL) measured with the aid of periapical radiographs...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29115902/open-mouth-jaw-locking-in-cats-a-literature-review-and-use-of-computed-tomography-in-three-cases
#3
Anna E Nutt, Thomas Anderson, Margherita Gracis, Ivan Doran, Chris Warren-Smith, Sorrel J Langley-Hobbs
Case series summary This report summarises and reviews the published cases of open-mouth jaw locking in cats and describes three further cases. Case 1 was a 5-year-old, 5.3 kg male neutered domestic shorthair cat. CT identified changes consistent with temporomandibular joint (TMJ) dysplasia with osseous degenerative changes, and the cat subsequently underwent bilateral partial zygomectomy with bilateral partial coronoidectomy. Case 2 was a 10-year-old, 6.0 kg male neutered Exotic Shorthair. Aside from a fracture of the left maxillary canine tooth crown and absence of the left maxillary fourth premolar tooth, no abnormalities were found on CT scan...
November 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/29111127/a-five-year-follow-up-of-a-root-fracture-in-a-ten-year-old-boy
#4
Delphine Wagner, Damien Offner, Anne-Marie Musset
The management of horizontal root fracture still presents a challenge to clinicians. The case of a 10-year-old boy with a horizontal root fracture in the left maxillary central incisor (tooth number 21) is described here. The fracture was present at the junction of the apical and the middle thirds. We report both the emergency care and the 5-year follow-up. At the same time, an orthodontic treatment was planned for a retained maxillary cuspid (tooth number 23), first composed of a high-pull headgear and then by a fixed multi-bracket appliance...
October 27, 2017: International Orthodontics
https://www.readbyqxmd.com/read/29109841/mandibular-reconstruction-with-lateral-tibial-bone-graft-an-excellent-option-for-oral-and-maxillofacial-surgery
#5
Ana Lucia Carpi Miceli, Livia Costa Pereira, Thiago da Silva Torres, Mônica Diuana Calasans-Maia, Rafael Seabra Louro
Autogenous bone grafts are the gold standard for reconstruction of atrophic jaws, pseudoarthroses, alveolar clefts, orthognathic surgery, mandibular discontinuity, and augmentation of sinus maxillary. Bone graft can be harvested from iliac bone, calvarium, tibial bone, rib, and intraoral bone. Proximal tibia is a common donor site with few reported problems compared with other sites. The aim of this study was to evaluate the use of proximal tibia as a donor area for maxillofacial reconstructions, focusing on quantifying the volume of cancellous graft harvested by a lateral approach and to assess the complications of this technique...
December 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29109838/treatment-outcomes-for-isolated-maxillary-complex-fractures-with-maxillomandibular-screws
#6
Rahul Gorka, Amish Jayantilal Gohil, Ashish Kumar Gupta, Santosh Koshy
Intermaxillary fixation (IMF) is a basic and fundamental principle in the management of patients with fractures of the maxillomandibular complex. There are several shortcomings related to the conventionally recommended tooth-mounted devices that are used to achieve IMF. To circumvent these, the use of bone-borne screws has been advocated. We present a series of maxillary fractures treated with IMF screws. Over a 12-month period, 15 cases of maxillary fracture were managed with open reduction and bone plate fixation...
December 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29109323/impact-of-root-dentin-thickness-on-the-in-vitro-compressive-strength-of-teeth-treated-with-recent-post-and-core-systems
#7
Amit Bhagat, Litik Mittal, Sahil Mogla, Tawanpreet Kaur, Munish Dheeraj, Gursimran Marwah
INTRODUCTION: Endodontically treated teeth dry with time, and its dentin undergoes changes making the teeth brittle and friable. The main function of a post is to strengthen or reinforce a weakened root. However, doing a post and core frequently requires the removal of sound tooth tissue. Recent materials introduced in the market for post and cores have been promising. AIM: The aim of this study is to evaluate the fracture resistance of endodontically treated extracted permanent teeth with variable remaining root dentin thickness after post space preparation...
November 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29101581/a-case-of-traumatic-infraorbital-neuroma
#8
Shahriar Amjadi, Weng Onn Chan, Saul Rajak, David K Morrissey, Sumu Simon, Gary Davis, Dinesh Selva, Alkis J Psaltis
A 53-year-old Afghan man presented with a 12-month history of left proptosis, diplopia and facial swelling 20 years after a bomb blast injury. Magnetic resonance and computed tomography imaging revealed a well-circumscribed lesion centred within the left inferior orbit/superior maxillary sinus along with left orbital fracture. Histopathology and immunostaining of the debulked lesion were consistent with traumatic neuroma of the infraorbital nerve. Infraorbital neuromas have developed following orbital decompression surgeries but have not been reported previously following non-surgical trauma...
December 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29079354/effect-of-luting-agent-on-the-load-to-failure-and-accelerated-fatigue-resistance-of-lithium-disilicate-laminate-veneers
#9
Marco M M Gresnigt, Mutlu Özcan, Marco Carvalho, Priscilla Lazari, Marco S Cune, Peywand Razavi, Pascal Magne
OBJECTIVE: The aim of this study was to investigate the influence of the luting agent on the application of laminate veneers (LVs) in an accelerated fatigue and load-to-failure test after thermo-cyclic aging. METHODS: Sound maxillary central incisors (N=40) were randomly divided into four groups to receive LVs (Li2Si2O5) that were adhesively bonded: Group CEMF: Adhesive cement (Variolink Esthetic LC), fatigue test; Group CEMLF: Adhesive cement, load-to-failure test; Group COMF: Resin composite (Enamel HFO), fatigue test; Group COMLF: Resin composite, load-to-failure test...
October 24, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29071024/fracture-resistance-of-incisal-fragments-following-reattachment-with-different-techniques-in-simulated-crown-fractures
#10
Fatih Tulumbacı, Volkan Arıkan, Aylin Akbay Oba, Serdar Bağlar
Introduction: The aim of the present study was to evaluate and compare the effect of acidetching and Er, Cr:YSGG laser treatment before the reattachment of incisal fragments in coronal fractures of permanent incisor teeth. Methods: Sixty-six sound human maxillary incisors were randomly divided into 3 groups (n=22). Teeth were embedded in self-cure acrylic resins by leaving one-third of the crowns out, and uncomplicated crown fractures were obtained using an Instron testing device. The fragments were reattached using 3 different procedures and a hybrid resin composite (Z250): Group I: Acid etching + Prime & Bond NT; Group II: Er,Cr:YSGG + Prime & Bond NT; Group III: Er,Cr:YSGG + Acid etching + Prime & Bond NT...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29040148/long-term-effects-of-bone-morphogenetic-protein-2-loaded-calcium-phosphate-on-maxillary-sinus-lift-surgery-for-delayed-and-simultaneous-dental-implantation
#11
Yuefeng Ding, Xuejuan Wang
Maxillary sinus lift surgery (MSLS) is considered to be a useful treatment method for patients with atrophic alveolar bone. Choosing a suitable surgical procedure to simultaneously decrease graft absorption and obtain long-term survival of dental implants is still a challenge. In this study, 20 patients received MSLS with graft of bone morphogenetic protein 2 (BMP2)-loaded calcium phosphate. Dental implants were placed simultaneously in 10 patients receiving MSLS (1-stage group), and in 10 patients receiving dental implants with a 3 to 6 months delay (2-stage group)...
October 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29038634/3-dimensional-plate-in-management-of-sagittal-palatal-fracture-a-novel-technique
#12
Anshul Rai
The palatal fracture is rare. There are varieties of techniques mentioned in the literature for fixation of palatal fracture. The management with Kirschner wire fixation, maxillary arch stabilization with the arch bars, trans-palatal, intra osseous, inter-molar, figure of eight wiring were technique sensitive and having poor patient compliance. We recommended the use of isolated 3 dimensional plate for fixation of sagittal palatal fracture.
December 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/29038624/comparing-the-efficiency-of-two-different-extraction-techniques-in-removal-of-maxillary-third-molars-a-randomized-controlled-trial
#13
Joseph Edward, Mubarak A Aziz, Arjun Madhu Usha, Jyothi K Narayanan
INTRODUCTION: Extractions are routine procedures in dental surgery. Traditional extraction techniques use a combination of severing the periodontal attachment, luxation with an elevator, and removal with forceps. A new technique of extraction of maxillary third molar is introduced in this study-Joedds technique, which is compared with the conventional technique. METHODS AND MATERIAL: One hundred people were included in the study, the people were divided into two groups by means of simple random sampling...
December 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/29034597/effect-of-composite-type-and-placement-technique-on-cuspal-strain
#14
Vilhelm G Ólafsson, André V Ritter, Edward J Swift, Lee W Boushell, Ching-Chang Ko, Gabrielle R Jackson, Sumitha N Ahmed, Terence E Donovan
OBJECTIVE: To compare the cuspal strain in Class II restorations made with bulk-fill and conventional composite resins. MATERIALS AND METHODS: Fifty extracted maxillary premolars were mounted into phenolic rings and divided into five groups (n = 10). Specimens received standardized MOD preparations. A two-step self-etch adhesive was applied and the preparations were restored using a custom matrix as follows: Filtek Supreme Ultra in eight 2-mm increments (FSUI); Filtek Supreme Ultra in bulk (FSUB); SonicFill in bulk (SF); SureFil SDR flow in bulk, covered with a 2-mm occlusal layer of Filtek Supreme Ultra (SDR/FSU); Tetric EvoCeram Bulk Fill in bulk (TEBF)...
October 16, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29031478/patterns-of-facial-trauma-before-and-after-legalization-of-marijuana-in-denver-colorado-a-joint-study-between-two-denver-hospitals
#15
Mofiyinfolu Sokoya, Justin Eagles, Tyler Okland, Dylan Coughlin, Hannah Dauber, Christopher Greenlee, Andrew A Winkler
INTRODUCTION: The effect of marijuana on human health has been studied extensively. Marijuana intoxication has been shown to affect performance, attention span, and reaction time. The public health relationship between trauma and cannabis use has also been studied, with mixed conclusions. In this report, the effect of marijuana legalization on many aspects of facial trauma at two hospitals in Denver, Colorado is examined. METHODS: A retrospective review of the electronic medical records was undertaken...
October 7, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29019579/epidemiological-study-of-facial-fractures-at-the-oral-and-maxillofacial-surgery-service-santa-casa-de-misericordia-hospital-complex-porto-alegre-rs-brazil
#16
Rodrigo Andrighetti Zamboni, João Carlos Birnfeld Wagner, Maurício Roth Volkweis, Eduardo Luis Gerhardt, Elissa Muller Buchmann, Caren Serra Bavaresco
OBJECTIVES: to investigate the incidence and etiology of face trauma with diagnosis of facial fracture treated at the Buccomaxillofacial Surgery and Traumatology Service of the Santa Casa de Misericórdia Hospital Complex in Porto Alegre. METHODS: we conducted a cross-sectional, retrospective epidemiological study of 134 trauma victims with 153 facial fractures. RESULTS: the male gender was the most affected (86.6%) and the incidence was higher in the age group from 21 to 30 years...
September 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28992601/tooth-damage-in-captive-orcas-orcinus-orca
#17
John Jett, Ingrid N Visser, Jeffrey Ventre, Jordan Waltz, Carolina Loch
OBJECTIVES: Tooth damage as a result of oral stereotypies is evident in captive orca, yet little research on the topic exists. This study examines the associations between dental pathology, sex, facility, duration of captivity and other factors in captive orca. DESIGN: We evaluated mandibular and maxillary teeth from dental images of 29 captive orca owned by a US-based theme park. Each tooth was scored for coronal wear, wear at or below gum line and bore holes. Fractured and missing teeth were also noted...
September 29, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28990014/atypical-root-resorption-following-root-fractures-in-primary-teeth
#18
Ok Hyung Nam, Mi Sun Kim, Gyu-Tae Kim, Sung Chul Choi
Atypical root resorption (ARR) is the condition of a superficial and circumferential resorption process along the lateral and/or apical root surface of a primary maxillary incisor. This case series demonstrates longitudinal observations of six patients with atypical root resorption following root-fractured primary incisors. The characteristics of atypical root resorption were different from pathologic root resorption.
October 6, 2017: Quintessence International
https://www.readbyqxmd.com/read/28978271/feline-dental-implants-long-term-follow-up-of-two-cases
#19
Rocco E Mele, Anthony Caiafa, Gregori M Kurtzman
Dental implants have become an option for replacement of lost canine teeth in cats. Although cats appear to manage well after a canine extraction, complications such as lip entrapment can occur after maxillary canine tooth extraction. Even cats with a complicated crown fracture of the maxillary canine tooth that have had root canal therapy can develop lip entrapment. This can lead to painful lip ulcers and potential need for further dental treatment. Canine tooth replacement with a dental implant and prosthodontic crown is, in the authors' experience, a predictable option that can be offered to clients who would like to replace a lost canine tooth...
January 1, 2017: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28969286/traumatic-dental-injuries-prevalence-and-their-impact-on-self-esteem-among-adolescents-in-india-a-comparative-study
#20
Nikita Goyal, Simarpreet Singh, Anmol Mathur, Diljot Kaur Makkar, Vikram Pal Aggarwal, Anshika Sharma, Puneet Kaur
INTRODUCTION: Adolescents are mostly injured during sport activities, traffic accidents and some forms of violence which may lead to traumatic injuries. Traumatic injuries not only pose a health risk worldwide but are also regarded among serious social problems. Poor oral health has been related to poor social relationships that affect the ability to learn and grow which may lead to reduced self-esteem. AIM: This study was conducted to compare self-esteem of adolescents with and without anterior Traumatic Dental Injury (TDI)...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
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