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Joseph R Grennberg
As digital technology increasingly permeates the practice of dentistry, intraoral digital impression scanning is evolving rapidly. New systems are making the capture of digital impressions faster and easier than previous generations of digital impression scanners. This case report describes the use of a contemporary intraoral impression scanner to capture tooth and soft-tissue positions for a four-unit fixed prosthesis and accompanying custom dental implant abutment.
February 2019: Compendium of Continuing Education in Dentistry
Nobuhiko Furuse, Suguru Kimoto, Yoshio Nakashima, Takahiro Ogawa, So Furokawa, Masakazu Okubo, Hidenori Yamaguchi, Yasuhiko Kawai
BACKGROUND: There is little evidence regarding the reliability of CPT and PT measurement to gauge mandibular perception. Thus, this study aimed to evaluate the test-retest reliability of CPT and PT values obtained from the mandibular oral mucosa and to test the bilateral differences in CPT and PT values obtained from the mental foramen region and buccal shelf region by a single operator. METHODS: CPT and PT values were obtained from the mental foramen and buccal shelf regions of 20 volunteers (10 male, 10 female; average age: 26...
February 14, 2019: Journal of Oral Rehabilitation
Marcel Wittenberg, Margitta Worm
Mucous membrane pemphigoid (MMP) is a rare autoimmune bullous disease of the mucous membranes, which can cause irreversible scarring and is discussed to be associated with cancer, if laminin-332-autoantibodies are present. MMP with severe ocular and laryngeal involvement is difficult to treat and can be treatment-refractory to conventional immunosuppressant therapy. A 67-year-old man with a history of prostate cancer presented to our clinic with sore throat, intraoral bullae, odynophagia, dysphonia, exertional dyspnea, and erosions of the glans penis...
2019: Frontiers in Medicine
Ho-Hyun Brian Sun, Sheng-Chuan Lin, Benjamin Shimel, Chan M Park, Supreeth Sharaschandra
We report on a case in which a blanching, unobtrusive oral growth proved to be a systemic threat. A blind, epileptic child presented with a bleeding oral floor mass of 4 weeks. Biopsy showed small, dilated vascular spaces with reactive fibroblasts. MRI indicated distribution of expansile lesions in the mandible, cranial base, and right orbit that had possibly contributed to the patient's years-long neurologic deficits. A subsequent bone scan indicated lesions in multiple axial bones. Histologic markers confirmed the presentation of a rare cystic vascular pathology...
February 13, 2019: Head and Neck Pathology
Silvia Helena de Carvalho Sales-Peres, Francisco Carlos Groppo, Rafaela Carolina Soares Bonato, Matheus de Carvalho Sales-Peres, Francisco Haiter-Neto, Elinton Adami Chaim
BACKGROUND: Systemic bone loss may lead to more severe periodontal destruction, decreasing local bone mineral density. AIM: A cross-sectional designed was performed to study associations among alveolar bone pattern, salivary leptin concentrations, and clinical periodontal status in premenopausal obese and eutrophic women. METHODS: Thirty morbid obese (G1) and 30 normal-weight (G2) women were included. Anthropometric and periodontal measurements (probing depth - PD, clinical attachment levels - CAL, presence of calculus, bleeding on probing -BOP, and plaque accumulation) were assessed...
February 7, 2019: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
Hong Kyu Kim, Dawon Park, Hoon Yub Kim
BACKGROUND: Transoral approach for thyroidectomy draws attention recently among the thyroid surgeons, with the merits of cosmetic outcomes and minimal flap dissection. The aim of this study is to demonstrate the details and the steps of transoral robotic thyroidectomy. METHODS: We made three incisions in the gingival-buccal sulcus for three 8-mm intraoral ports: one inverted U-shaped 1-cm midline incision approximately 2 cm above the frenulum, and two 0.5-cm lateral incisions near the commissure of lips...
February 13, 2019: Head & Neck
Sang-Hoon Kang, Chan-Seung Kim, Ji-Yeon Lee
OBJECTIVES: This study analyzed the accuracy of digital occlusion settings for maxillofacial surgery simulation using occlusal contact points obtained from dental cast models. METHODS: Twenty-nine paired dental cast models of patients were used. The orthodontist set the dental cast for postoperative planned occlusion in the articulator. In the experimental group, a digital dental cast was placed in the occlusion state between the maxillary cast and the mandibular cast by the paired points matching method according to the more than four paired occlusal contact points...
February 11, 2019: Oral Radiology
A Rahman, F Tauhid, S Begum, M Saifuddin, M A Hossain, P Paul, A A Abdullah
A male patient about 45 years old came to my private clinic "The Dental Aid", Dhanmondi, Dhaka, Bangladesh last year (February 2016) with the complaint of pain at right palatal premolar region. On clinical examination we found the absence of upper left 2nd premolar from the series of dentition but on the right side premolars are present. The oral mucosa was intact and normal in color. There was no caries, dental pocket or any other pathology in the teeth of both jaws. On palpation we found soft area on the right palatal side at the premolar area...
January 2019: Mymensingh Medical Journal: MMJ
Xu Cheng, Hanyao Huang, Bing Shi, Jingtao Li
BACKGROUND: The levator veli palatini (LVP) muscle drives the elevation and retraction of the soft palate to facilitate speech and feeding, but undergoes atrophic changes in patients with cleft palate deformity. This study aimed to establish an effective drug delivery technique for LVP muscle regeneration. METHODS: An intraoral injection technique for rat LVP muscle regeneration was developed based on careful examination of the rat craniofacial anatomy. The accuracy and reliability of this technique were tested by cone-beam computed tomography and nitrocellulose dye labeling...
February 9, 2019: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
Dan Ni Guo, Yu Shu Liu, Shao Xia Pan, Peng Fei Wang, Bing Wang, Jian Zhang Liu, Wen Hui Gao, Yong Sheng Zhou
OBJECTIVE: To evaluate the time efficiency and patient preference of three impression techniques by comparing immediate digital impression performed directly after implantation with regular digital impression and conventional implant impression performed 3 months after implantation. METHODS: Twenty consecutive patients with a missing single molar or premolar who received implant treatment were recruited into this prospective self-controlled clinical trial. Three different impression techniques were performed after implant surgery on all the participants: An intraoral scanning (IOS) impression performed immediately after implant placement (immediate digital impression) was compared with a regular digital impression and a classic polyether impression (conventional implant impression) performed 3 months after implant surgery...
2019: Chinese Journal of Dental Research
A Ahsana, Ganesh Jeevanandan, E M G Subramanian
Background: The study of morphology of dentition can provide information on the phylogenetic relationship between species and diversities among population. There is a difference in opinions regarding influence of ethnicity on dental morphology. Using quantitative methods, few studies have shown the associations between these dental features and crown traits in humans. The present study is to find the correlation between the occlusal morphology and forensic anthropological research. Aim and Objective: The aim of this study is to determine the prevalence of different types of primary mandibular second molars in South Indian which can be used in forensic anthropological research...
May 2018: Journal of Forensic Dental Sciences
Aanchal Rajesh Punjabi, Gaurang Mistry, Omkar Shetty, Asha Rathod
Maxillary defects, whether congenital or acquired, make a patient encounter an array of physical and psychological difficulties, leading to an extremely poor quality of life. Rehabilitation of such a patient is often challenging due to the extent of the defect area coupled with the absence of adequate retention caused by the size and weight of the prosthesis. Further, providing a proper seal of the oronasal communication is of utmost importance to restore function. Taking the above factors into consideration, a combination of hollow-bulb obturator consisting of a titanium framework and a flexible, snap-on silicone cap is an effective prosthesis providing a long-term treatment, increased retention, and a happy patient...
January 2019: Journal of Indian Prosthodontic Society
Adam Hamilton, Faris Jamjoom, Simon Doliveux, German O Gallucci, Bernard Friedland
A procedure for registering digital intraoral surface scans onto cone beam computed tomography in the presence of significant scatter artifact is described. The technique uses chairside-fabricated composite resin markers placed on well-distributed teeth to serve as common landmarks in each digital data set for accurate registration. This straightforward, noninvasive, and cost-effective technique facilitates registration without the need for a specialized armamentarium or radiographic templates.
February 8, 2019: Journal of Prosthetic Dentistry
Carlos Augusto Souza Lima, Deborah Queiroz Freitas, Glaucia Maria Bovi Ambrosano, Francisco Haiter-Neto, Matheus Lima Oliveira
OBJECTIVES: The aim of this study was to evaluate interpretation conditions in the subjective in vitro assessment of dental tissue-equivalent radiographic contrast. STUDY DESIGN: Radiographic images with the density of dental structures were randomized and arranged in 20 sequences with images juxtaposed and separated. Twelve observers interpreted the sequence among the most radiolucent and radiopaque images with 3 displays, 3 horizontal viewing angles, and 3 ambient light conditions...
January 9, 2019: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Trang T H Tu, Miho Takenoshita, Hirofumi Matsuoka, Takeshi Watanabe, Takayuki Suga, Yuma Aota, Yoshihiro Abiko, Akira Toyofuku
Burning Mouth Syndrome (BMS), a chronic intraoral burning sensation or dysesthesia without clinically evident causes, is one of the most common medically unexplained oral symptoms/syndromes. Even though the clinical features of BMS have been astonishingly common and consistent throughout the world for hundreds of years, BMS remains an enigma and has evolved to more intractable condition. In fact, there is a large and growing number of elderly BMS patients for whom the disease is accompanied by systemic diseases, in addition to aging physical change, which makes the diagnosis and treatment of BMS more difficult...
2019: BioPsychoSocial Medicine
Renata Maria Moreira Moraes Furlan, Guilherme André Santana, Walter F Bischof, Andréa Rodrigues Motta, Estevam Barbosa de Las Casas
BACKGROUND: Lingual exercises are commonly used in clinical practice for swallowing rehabilitation. Associating lingual exercises with computer games increases motivation, which influences tongue motor performance. OBJECTIVE: To investigate the effects of: tongue movement direction; resistance force level; repetition number; sustained tongue contraction duration; age and gender on tongue motor performance in healthy adults using computer games. METHODS: An observational pilot study was carried out at a university laboratory...
February 6, 2019: Journal of Oral Rehabilitation
Walleska Feijó Liberato, Isadora Carvalho Barreto, Priscila Paganini Costa, Cristina Costa de Almeida, Welson Pimentel, Rodrigo Tiossi
STATEMENT OF PROBLEM: Visual shade matching is subjective and a cause of concern for clinicians. Different measurement devices have been developed to assist in tooth color selection and to achieve better esthetic results. However, consensus is lacking as to which method of tooth shade selection provides more predictable results. PURPOSE: The purpose of this clinical study was to compare the reliability of different visual and instrumental methods for dental shade matching...
February 2019: Journal of Prosthetic Dentistry
B Berenguer, C Lorca-García, A Lancharro, E DeTomás
BACKGROUND: The buccal fat pad (BFP) has prompted numerous publications in anatomy, reconstructive and aesthetic surgery over the years; however, description of surgical treatment of pathologic conditions affecting this space is rare, especially in children. An extensive search of the English literature retrieved only five lipomas and one hemangioma in this age group. METHODS: The authors report on two of these exceptional pediatric tumors of the BFP: one lipoma and one hemangioma referred to the outpatient clinic for diagnosis and treatment...
February 5, 2019: Acta Chirurgica Belgica
Saori Kashiwagi, Yuji Naito, Ryo Inoue, Tomohisa Takagi, Takahiro Nakano, Yutaka Inada, Akifumi Fukui, Kazuhiro Katada, Katsura Mizushima, Kazuhiro Kamada, Kazuhiko Uchiyama, Osamu Handa, Takeshi Ishikawa, Yoshito Itoh
BACKGROUND: The importance of microbiota infiltrating the gut mucus layer has been reported in the pathogenesis of various gastrointestinal and systemic diseases. However, little is known about the mucosa-associated microbiota (MAM) in healthy subjects. The present study aimed to clarify the characteristics of the gastrointestinal MAM from the oral cavity to the rectum in healthy Japanese subjects. METHODS: Seventeen healthy subjects were enrolled. In this study, 5 mucosa samples from the upper gut (intraoral, mid-esophagus, gastric corpus, gastric antrum, and duodenum) and 7 from the lower gut (ileum, cecum, ascending colon, transverse colon, descending colon, sigmoid colon, and rectum) were collected with a brush under endoscopic examination...
February 5, 2019: Digestion
S Spalthoff, R Zimmerer, J Dittmann, P Korn, N-C Gellrich, P Jehn
A scapula free flap is a commonly used method to reconstruct intraoral defects of the mandible and maxilla. Despite its clear advantages, it shows some deficiencies concerning the amount and shape of the available bone, especially with respect to later implant placement. To overcome these limitations, we pre-augmented the scapula prior to a potential flap-raising procedure with polycaprolactone (PCL) tricalcium phosphate (TCP) scaffolds in a sheep model. In our study, the scapula angle was augmented with a block of PCL-TCP in three adult sheep...
October 25, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
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