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Isabel Moreno-Hay, John Lindroth
This article describes a case of continuous dentoalveolar neuropathic pain in which relief was obtained following repeated administration of intravenous infusions of a subanesthetic dose of ketamine. A 50-year-old female presented in 2006 with a 1-year history of constant sharp pain in the gingiva surrounding the maxillary left second premolar and second molar rated as 10/10 on a pain intensity scale. After multiple systemic medications failed to adequately manage the patient's pain, partial pain reduction was obtained (4/10) with daily use of methadone 50 mg in combination with application of a topical compound including lidocaine, amitriptyline, and carbamazepine to the affected area as needed...
April 2018: Journal of Oral & Facial Pain and Headache
Mohsen Afkar, Mahboubeh Gholamshahi, Mehdi Mohammadi
This is a clinical report of a case of Oehlers type II dens invagination in left maxillary lateral incisor. A 12-year-old female patient was referred to endodontic department of Islamic Azad University. She reported history of pain and swelling on left anterior maxilla. Due to the insufficient information from conventional radiography, cone-beam computed tomography (CBCT) was ordered. CBCT revealed apical lucency and two separate canals. Conventional root canal therapy was done using warm vertical technique for invaginated canal...
2018: Iranian Endodontic Journal
Mohsen Ramazani, Mohammad Asnaashari, Roghayyeh Ahmadi, Nafiseh Zarenejad, Alireza Rafie, Jamshid Yazadani Charati
Introduction: This in vitro study aimed at comparing the effect of agitating the final irrigant solutions of root canal by ultrasonic or using 808 nm Diode laser on the apical seal of canal. Methods and Materials: A total of 90 extracted human maxillary central incisors were prepared up to size #45 and were randomly assigned to 4 experimental groups ( n =20) and two control groups ( n =5) respectively, as follows: I ): 3 mL of 5.25% NaOCl was agitated as final irrigant solution with ultrasonic for 30 sec...
2018: Iranian Endodontic Journal
Mohsen Rezaeian, Maryam Rouhani Tonekaboni, Foad Iranmanesh
Introduction: A successful endodontic treatment depends on a comprehensive knowledge of the morphology of canal and its variations, an appropriate access cavity, proper cleaning and shaping and adequate root canal filling. The present study was carried out to evaluate the root canal morphology of permanent maxillary first molars in an Iranian population. Methods and Materials: In this in vitro study, 80 extracted permanent maxillary first molars from a population in Rafsanjan, Iran were collected...
2018: Iranian Endodontic Journal
Claudia Rezende Gomes Alves, Márcia Martins Marques, Maria Stella Moreira, Sueli Patricia Harumi Miyagi de Cara, Carlos Eduardo Silveira Bueno, Cesar Ângelo Lascala
Introduction: The second canal of the mesiobuccal root (MB2) of the maxillary first molars (MFM) is difficult to detect in conventional radiographs and can be a major cause of failure in endodontic treatments. The aim of this study was to investigate the prevalence and anatomy of the MB2 by using high-resolution cone-beam computed tomography (CBCT). Methods and Materials: Three radiologists examined 414 high-resolution CBCTs. Of these, the CBCTs of 287 patients (mean age 49...
2018: Iranian Endodontic Journal
Sanjay Prasad Gupta, Basanta Kumar Shrestha
Purpose: To determine and compare the shear bond strength (SBS) of bracket-bonding system cured with light-emitting diode (LED) and halogen-based light-curing unit at various polymerization times. Materials and methods: Ninety six human maxillary premolar teeth extracted for orthodontic purpose were divided into four groups, according to the light-curing unit and exposure times used. In the halogen group, the specimens were light cured for 20 and 40 seconds. In the LED group, the specimens were light cured for 5 and 10 seconds...
2018: Clinical, Cosmetic and Investigational Dentistry
Rushad Hosi Nariman, Umesh Yeshwanth Pai, M K Soumya, Rakshith Hegde
Background: The presence of the dental papilla is critical to achieve esthetics in a single tooth implant restoration. Aim: The purpose of this study was to determine if there were differences in the papilla fill between implant and teeth comparing immediate implant placement and provisionalised single tooth implant restorations with delayed implant placement and provisionalised single tooth implant restorations. The papilla fill in these two groups was evaluated using the Jemt papilla index...
April 2018: Journal of Indian Prosthodontic Society
Lixuan Niu, Juan Wang, Huajie Yu, Lixin Qiu
BACKGROUND: It is complicated to select an appropriate sinus floor elevation and the procedure for sinus floor elevation lacks of consensus. Sinus contour plays an important role in choosing a surgery approach. But there are still no published articles revealing the influence of sinus contours to sinus floor elevation surgery. PURPOSE: We propose a new classification depending on sinus contours from cone-beam computed tomography (CBCT), analyze clinical characters of different types, and investigate the relationship between sinus contours and sinus floor elevation...
April 25, 2018: Clinical Implant Dentistry and related Research
Nozomi Ahiko, Yoshiyuki Baba, Michiko Tsuji, Reiko Horikawa, Keiji Moriyama
Turner syndrome (TS) is associated with an X chromosome abnormality in women and is characterized by infantilism, congenital webbed neck, and cubitus valgus. The aim of this study was to determine the maxillofacial morphology and oral characteristics of Japanese girls (mean age, 8.5 years) with TS and early mixed dentition. Lateral cephalograms obtained at the first visit were used to analyze maxillofacial morphology. Oral characteristics were identified using orthopantomograms, intraoral photographs, and study casts...
April 25, 2018: Congenital Anomalies
An-Qi Liu, Yu-Fen Qian
Impacted maxillary permanent canine is the tooth that most commonly fails to erupt after the third molars. It can probably affect the dental arch alignment and form, occlusal function and facial profile as well. In this review, the epidemiology, etiology and influence on surrounding tissue of the impacted maxillary permanent canine were analyzed based on related literatures with the hope of providing references for clinical practice.
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Ling Zhu, Xia Cao, Xiao-Feng Tao
PURPOSE: To compare the teaching result of case-based learning based on cone-beam CT (CBCT) software and traditional pantomography. METHODS: Thirty-eight interns (7-year programme) of grade 2011 from College of Stomatology, Shanghai Jiao Tong University were enrolled. The inner diameter of the nasopalatine ducts (A), the length of upper canine's pulp cavity (B), the length between root furcation of upper first molar and the maxillary sinus (C), the length between the root of lower wisdom tooth and the inferior alveolar nerve (D) were measured on pantomographic films and CBCT in the same case...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Yin-Hua Jiang, Hai-Biao Tao, Xiao-Ming Jin, Xiao-Kun Li
PURPOSE: To evaluate the clinical effect of simple osteotome sinus floor elevation without bone grafting in the posterior maxilla area with less bone height. METHODS: Twenty eight cases with posterior maxillary bone deficiency were included.Their residual alveolar bone height (RBH) was less than 7 mm. 40 ITI implants were implanted. Among them, 6 implants were implanted in the sites with RBH less than 4 mm (group 1), 34 were implanted in the sites with RBH between 4 to 7 mm (group 2)...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Peng Wang, Zheng-Xi Chen, Jun Wu, Zhen-Qi Chen
PURPOSE: To measure the thickness of the infrazygomatic(IZ) crest above the maxillary first molar and analyze its relationship with maxillary sinus as to derive clinical implications and provide guidance for placements of orthodontic mini-screw. METHODS: Thirty seven cone-beam CT(CBCT) images of infrazygomatic crest sites were collected from data of 19 adult inter-treatment orthodontic patients. Based on the relationship of maxillary sinus floor and mesiobuccal root of the maxillary first molar, the subjects were divided into high sinus floor group (n=13) and low sinus floor group (n=24)...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Wei Zhang, Chuan-Jie Yan, Li Li
PURPOSE: To compare the clinical efficacy of non-extraction treatment in maxillary mild-to-moderate crowding cases with Damon self-ligating system and Roth traditional brackets. METHODS: Sixty skeletalⅠorthodontic patients were selected in this study. They were divided into DamonⅠ, RothⅠ, DamonⅡ and RothⅡ group according to the bracket species and maxillary crowding degrees. Lateral cephalometric radiographs and models were measured before and after aligning and leveling to analyze the changes in dental arch and soft and hard tissue using SPSS 19...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Ubon Tangkawanit, Komgrit Wongpakam, Pairot Pramual
A new black fly species of the subgenus Asiosimulium Takaoka Choochote of the genus Simulium was recognized from northeastern Thailand based on morphology, mitochondrial DNA and ecology. This black fly species has similar morphological characteristics to Simulium oblongum Takaoka and Choochote that was also described from the same geographic region in all life stages. However, this new species could be distinguished at the adult stage by coloration of the maxillary palp and in the larval stage by the presence of a pigmented subesophageal ganglion that is lacking in S...
February 28, 2018: Zootaxa
Patrick J Ciccotto, Heok Hui Tan
Lobocheilos aurolineatus, new species, is described from the Mahakam River basin in East Kalimantan, Indonesian Borneo. It is distinguished from all other species of Lobocheilos except for L. ixocheilos and L. tenura in having one pair of barbels (maxillary) and by the presence of a broad, black midlateral stripe, approximately ¾ scale height in thickness, extending from the operculum to the caudal-peduncle base. Lobocheilos aurolineatus differs from both species in possessing a thin cream to yellow stripe on the anterior ⅔ of the flank, separating the black midlateral stripe from the brown dorso-lateral scales, and by a smaller mouth width (23...
March 22, 2018: Zootaxa
Xue-Ling Song, Liang Cao, E Zhang
Onychostoma brevibarba, a new cyprinid species, is described from two tributaries flowing into the Xiang Jiang (= River) of the middle Chang Jiang basin in Hunan Province, South China. The new species is morphologically similar to two Chinese congeners, O. minnanense and O. barbatulum, but differs from them in the anteromedian extension of the postlabial groove. It further differs from O. minnanense in the maxillary-barbel length, shape and body coloration, and from O. barbatulum in the number of lateral-line perforated scales and the width of the mouth opening...
April 16, 2018: Zootaxa
Jian-Huan Yang, Jian Wang, Ying-Yong Wang
We describe a new horned toad species of the genus Megophrys from Yingjiang County of Yunnan Province, China. The new species, Megophrys feii sp. nov., can be distinguished from its congeners by a combination of the following characters: (1) body slender and small (SVL 24.3-25.1 mm in four males, 28.2-28.9 mm in two females); (2) head length about equal to head width (HDL/HDW 0.97-0.99); (3) tympanum circular and distinct; (4) maxillary teeth present; (5) vomerine ridges and vomerine teeth absent; (6) tongue round, slightly notched posteriorly; (7) tibia long (TIB/SVL 0...
April 23, 2018: Zootaxa
Richard Sehnal
The Afrotropical genus Brachylepis Kolbe, 1894 (Scarabaeidae: Melolonthinae: Leucopholini) was established for Coniopholis elephas Gerstaecker, 1867 from Kenya. Subsequently, Brenske (1898) described Brachylepis bennigseni from Tanzania (Pare Mountains), and Lacroix (2009) described B. werneri from Ethiopia (Negele Borana) and synonymised B. bennigseni with B. elephas. Thus, the genus contains only two species. From the closely related Afrotropical leucopholine genera (e.g., Eulepida Kolbe, 1894, Eulepidopsis Burgeon, 1946, Cochliotis Kolbe, 1894) it differs in having nine antennomeres, the terminal maxillary palpomere expanded near midlength, and an incomplete metatibial carina (Lacroix 2009, 2010)...
January 31, 2018: Zootaxa
Cristian E Granados Martinez, Lucimar Gomes Dias, Carlos Molineri
Tricorythodes macuira sp n. is described and illustrated based on nymphs of both sexes and eggs from Colombia. This species can be recognized by the following combination of characters: maxillary palp 2-segmented and small, pronotum with rounded anterolateral projection, pronotum and mesonotum with thick and long setae on margins, femora I and II with transverse row of long setae at dorsum, tarsal claws with marginal row of 5-8 denticles and subdistal double row of 4-2 + 1-2 submarginal denticles, subtriangular operculate gills shaded black on a basal stripe, ventralmost lamellae of gills III-V with dorsal extension very well developed, abdominal segments VII-IX with small posterolateral spines...
February 2, 2018: Zootaxa
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