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https://www.readbyqxmd.com/read/28097682/evaluation-of-perforated-demineralized-dentin-scaffold-on-bone-regeneration-in-critical-size-sheep-iliac-defects
#1
Md Arafat Kabir, Masaru Murata, Toshiyuki Akazawa, Kaoru Kusano, Katsuhisa Yamada, Manabu Ito
OBJECTIVES: Regenerating critical-size bone injury is a major problem that continues to inspire the design of new graft materials. Therefore, tissue engineering has become a novel approach for targeting bone regeneration applications. Human teeth are a rich source of stem cells, matrix, trace metal ions, and growth factors. A vital tooth-derived demineralized dentin matrix is acid-insoluble and composed of cross-linked collagen with growth factors. In this study, we recycled human non-functional tooth into a unique geometric dentin scaffold, entitled perforated root-demineralized dentin matrix (PR-DDM)...
January 17, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27989582/expression-of-cannabinoid-type-1-receptors-in%C3%A2-human-odontoblast-cells
#2
Kehua Que, Dan He, Ying Jin, Ligeng Wu, Fang Wang, Zhiying Zhao, Jing Yang, Jiayin Deng
INTRODUCTION: The aim of this study was to investigate the functional expression of cannabinoid type 1 (CB1) receptors in human odontoblasts (HODs) and the possible internal mechanism. METHODS: In the present study, we examined the molecular and functional expression of the CB1 receptors in cultured HOD-like cells and native HODs obtained from healthy wisdom teeth. RESULTS: Immunohistochemistry and immunofluorescence revealed that CB1 receptors localize to native HODs and HOD-like cells, respectively...
December 15, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27975042/predictive-values-derived-from-lower-wisdom-teeth-developmental-stages-on-orthopantomograms-to-calculate-the-chronological-age-in-adolescence-and-young-adults-as-a-prerequisite-to-obtain-age-adjusted-informed-patient-consent-prior-to-elective-surgical-procedures
#3
Reinhard E Friedrich, Kirsten Schmidt, András Treszl, Jan F Kersten
Introduction: Surgical procedures require informed patient consent, which is mandatory prior to any procedure. These requirements apply in particular to elective surgical procedures. The communication with the patient about the procedure has to be comprehensive and based on mutual understanding. Furthermore, the informed consent has to take into account whether a patient is of legal age. As a result of large-scale migration, there are eventually patients planned for medical procedures, whose chronological age can't be assessed reliably by physical inspection alone...
2016: GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW
https://www.readbyqxmd.com/read/27974819/adjacent-tooth-trauma-in-complicated-mandibular-third-molar-surgery-risk-degree-classification-and-digital-surgical-simulation
#4
Zhou-Xi Ye, Chi Yang, Jing Ge
Analysis of adjacent tooth resistance is essential in wisdom teeth extraction to prevent adjacent tooth trauma, however it lacks adequate attention nowadays. This study aims at suggesting special extraction methods based on adjacent tooth resistance analysis for prevention of adjacent tooth damage. In this study, 136 complicated mandibular third molars extracted using piezosurgery were reviewed and classified based on the adjacent teeth resistances shown in orthopantomogram (OPG) during their mesio-distal rotations: degree I refers to teeth with no adjacent teeth resistance; degree II refers to teeth with resistance released after mesial-half crown sectioning; degree III refers to teeth which still had resistance after mesial-half crown sectioning...
December 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27957349/a-case-of-buccal-abscess-from-an-impacted-wisdom-tooth-in-an-elderly-person-with-malnutrition
#5
Yuki Kojima, Mizuha Kojima, Kazuhiro Sakaguchi, Yutaka Sakaguchi
We report a case of buccal abscess caused by an impacted wisdom tooth in an extremely elderly person with malnutrition. The patient was a 94-year-old man, who complained that he had found it hard to open his mouth and that his cheek had been swollen for the previous 2 weeks. He had a shallow oral wound caused by an improperly fitting denture; however, the wound became infected. We performed incisional drainage of the abscess under local anesthesia. The swelling disappeared and he was able to open his mouth 55 mm...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27812891/hypodontia-of-all-primary-canines
#6
R P Anthonappa, N M King
BACKGROUND: Several hypotheses have been proposed to explain hypodontia of the various tooth types with evolutionary and anatomic models. Hypodontia of all primary canines in a healthy individual is exceptionally rare and has not been previously reported in the dental literature. CASE REPORT: This clinical report describes a 4-year-old southern Chinese female with the congenital absence of the primary canines in all quadrants. Furthermore, all of the permanent tooth germs excluding the third molars were evident on a panoramic radiograph and were developing consistent with the subject's chronological age...
December 2016: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/27688427/prevalence-and-pattern-of-non-syndromic-hypodontia-in-a-group-of-turkish-children
#7
Berna Gokkaya, Betul Kargul
OBJECTIVE: The aim of this study was to assess the prevalence and pattern of congenital missing teeth in the permanent dentition (excluding wisdom teeth), among Turkish children in a 4-year period (2009-2012). METHODS: The study group comprised 1658 children (873 girls, 785 boys). The children were examined in Department of Pediatric Dentistry, Dental School of Marmara University. A chi square test was used to determine the difference in the prevalence of hypodontia between genders...
March 2016: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/27659630/distal-caries-of-the-second-molar-in-the-presence-of-a-mandibular-third-molar-a-prevention-protocol
#8
V Toedtling, P Coulthard, G Thackray
Objectives The objectives of the prospective study were to establish the prevalence of distal caries (DC) in the mandibular second molar and to assess the outcomes of these diseased teeth in our population. Further aims were to identify associated risk factors and to design a protocol for prevention.Methods Clinical and radiographic data from 210 consecutive patients were ascertained over a three-month period. The sample population included all patients who had been referred to a hospital oral surgery department for a lower wisdom tooth assessment...
September 23, 2016: British Dental Journal
https://www.readbyqxmd.com/read/27627858/cbct-evaluation-of-the-tridimensional-relationship-between-impacted-lower-third-molar-and-the-inferior-alveolar-nerve-position
#9
Andrea E Borgonovo, Federico Rigaldo, Carlo Maiorana, Giovanni B Grossi, Davide Augusti, Dino Re
BACKGROUND: The aim of this study is to evaluate if the statistical significant relations between the measures taken exists or not and to show how the 3D reconstruction could be help the oral surgeon in all those instances in which it may have a direct impact on the planning of the surgical steps. METHODS: Thanks to use of NobelClinicianTM Software it was possible to analyze 200 mandibular tomography computerized, random selected, and create a 3D reconstruction of mandibular bone, point out dental structure of wisdom tooth and the way of IAN...
September 15, 2016: Minerva Stomatologica
https://www.readbyqxmd.com/read/27605997/maxillary-tooth-displacement-in-the-infratemporal-fossa
#10
Korosh Roshanghias, Andre Peisker, Jörg Olaf Zieron
Wisdom tooth operations are sometimes accompanied by complications. This case report shows complications during upper jaw third molar removal. Expectable problems during oral surgery should be planned to be solved in advance. Displacement of the third molar during oral surgeries as a considerable complication is rarely discussed scientifically. A good design of flap, adequate power for extraction, and clear view on the surgical field are crucial. Three-dimensional radiographic diagnostics in terms of cone beam computed tomography is helpful after tooth displacement into the infratemporal fossa...
July 2016: Dental Research Journal
https://www.readbyqxmd.com/read/27594757/epidermoid-cyst-of-mandible-ramus-case-report
#11
Mergime Prekazi Loxha, Sami Salihu, Kaltrina Kryeziu, Sadushe Loxha, Zana Agani, Vjosa Hamiti, Aida Rexhepi
INTRODUCTION: An epidermoid cyst is a benign cyst usually found on the skin. Bone cysts are very rare and if they appear in bone they usually appear in the distal phalanges of the fingers. Epidermoid cysts of the jaws are uncommon. CASE PRESENTATION: We present a case, of a 41 year-old female patient admitted to our department because of pain and swelling in the parotid and masseteric region-left side. There was no trismus, pathological findings in skin, high body temperature level, infra-alveolar nerves anesthesia or lymphadenopathy present...
June 2016: Medical Archives
https://www.readbyqxmd.com/read/27568389/effect-of-deep-pressure-input-on-parasympathetic-system-in-patients-with-wisdom-tooth-surgery
#12
Hsin-Yung Chen, Hsiang Yang, Ling-Fu Meng, Pei-Ying Sarah Chan, Chia-Yen Yang, Hsin-Ming Chen
BACKGROUND/PURPOSE: Deep pressure input is used to normalize physiological arousal due to stress. Wisdom tooth surgery is an invasive dental procedure with high stress levels, and an alleviation strategy is rarely applied during extraction. In this study, we investigated the effects of deep pressure input on autonomic responses to wisdom tooth extraction in healthy adults. METHODS: A randomized, controlled, crossover design was used for dental patients who were allocated to experimental and control groups that received treatment with or without deep pressure input, respectively...
October 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/27504532/growth-factors-in-bone-marrow-blood-of-the-mandible-with-application-of-extracorporeal-shock-wave-therapy
#13
Jacqueline A Pfaff, Birgit Boelck, Wilhelm Bloch, Georg-Hubertus Nentwig
INTRODUCTION: Enhancement of bone regeneration is crucial to dental implantology. Growth factors play a significant role during osteogenesis and angiogenesis. Extracorporeal shock wave therapy (ESWT) enhances bone healing; however, no studies have yet been performed in oral implantology. MATERIALS AND METHODS: Twenty patients who underwent bilateral mandibular wisdom tooth removal were included. ESWT was applied to 1 side of the jaw. Blood samples were collected from the peripheral vein (PB), mandibular bone marrow without and with ESWT (BM-/+SW)...
October 2016: Implant Dentistry
https://www.readbyqxmd.com/read/27475098/adrenomedullin-promotes-the-proliferation-and-inhibits-apoptosis-of-dental-pulp-stem-cells-involved-in-divergence-pathways
#14
Qiang Zhu, Gang Tian, Zhen Tang, Jianyong Gao, Yinghui Tan
INTRODUCTION: Adrenomedullin (ADM) is highly expressed in dental tissues at the critical developmental time points during tooth development. However, its role in pulp repair and pulp injury is still unknown. The study aimed to investigate the mechanisms by which ADM affects the proliferation and apoptosis of human dental pulp stem cells (DPSCs). METHODS: Fifty-four freshly extracted wisdom teeth were obtained from 27 patients with caries and 27 without. Enzyme-linked immunosorbent assay and immunohistochemistry were used to examine the expression levels of ADM in caries and normal pulp tissues...
September 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27440735/initial-case-report-of-an-extracted-tooth-root-used-for-lateral-alveolar-ridge-augmentation
#15
Frank Schwarz, Andrea Schmucker, Jürgen Becker
OBJECTIVES: Recent animal studies have indicated, that tooth roots reveal a structural and biological potential to serve as alternative autografts for localized ridge augmentation. This proof-of-concept initial report aimed at investigating, whether this new surgical concept may be applied to humans. MATERIAL & METHODS: In one patient, who was in need for horizontal ridge augmentation, the roots of a retained upper wisdom tooth were separated and rigidly fixed at the defect site...
November 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/27398012/surgical-outcome-in-patients-taking-concomitant-or-recent-intake-of-oral-isotretinoin-a-multicentric-study-iso-aims-study
#16
Omprakash Heggadahalli Mahadevappa, Venkataram Mysore, Vishalakshi Viswanath, Salim Thurakkal, Imran Majid, Suresh Talwar, Sanjeev J Aurangabadkar, Manas Chatterjee, M Ramesh Bhat, Shyamanta Barua, Anil Ganjoo
BACKGROUND: The current standard recommendation is to avoid surgical interventions in patients taking oral isotretinoin. However, this recommendation has been questioned in several recent publications. AIM: To document the safety of cosmetic and surgical interventions, among patients receiving or recently received oral isotretinoin. MATERIALS AND METHODS: Association of Cutaneous Surgeons, India, in May 2012, initiated this study, at 11 centers in different parts of India...
April 2016: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/27377106/aneurismal-bone-cyst-a-conservative-surgical-technique-a-case-report-treated-with-a-small-access-osteotomy
#17
E Grecchi, A E Borgonovo, D Re, L Creminelli, F Grecchi
BACKGROUND: Aneurismal bone cysts (ABCs) are benign, non-neoplastic, expansive, and locally destructive lesions that may occur rarely. They are well defined and usually occur in the long bones, pelvis and vertebrae. According to the 2005 World Health Organization (WHO) histological classification of odontogenic tumours, ABC is classified as a bone-related lesion as ossyfing fibroma, fibrous dysplasia, osseous dysplasia, central giant cell lesion (granuloma-CGCL), cherubism and simple bone cyst (SBC)...
June 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/27295932/-wisdom-teeth-which-way-to-go
#18
REVIEW
O Yitschaky, M Segev-Neuhof, A Laviv
The debate regarding prophylactic extraction of mandibular third molar (Wisdom teeth) is not new. There is wide agreement among clinicians and researchers that an extraction in young age is easier and safer, but it may result in overtreatment, which means an unnecessary extraction of teeth that might have been functional and healthy. In order to avoid such overtreatment the clinician is obliged to be able to predict accurately the chances of third molar eruption, years before they are due to erupt. Additionally, the clinician has to estimate the chances for future pathology or infection that will force the patient to extract the tooth in years to come...
January 2016: Journal of the Israel Dental Association
https://www.readbyqxmd.com/read/27217960/a-new-multi-ingredient-recipe-for-the-treatment-of-localized-advanced-periodontal-disease-following-the-surgical-removal-of-impacted-wisdom-teeth
#19
Nabil Khzam, Adam Fell, Anthony Fisher, Paul Kim, Usman A Khan, Mahmoud M Bakr
Periodontal disease is a chronic inflammation of the tooth supporting structures. It leads to bone and attachment loss which is irreversible. Extraction of horizontally impacted lower third molar (L3M) teeth may result in localized periodontal pockets at the distal aspect of the adjacent lower second molars (L2M). We present a case of a 21-year-old male who suffered from a swelling and pain around his lower right second molar following surgical removal of a mesioangular impacted lower right third molar. We showed that oral hygiene measures, surgical access, mixture of autogenous and synthetic bone graft, and guided tissue regeneration (GTR) were enough to control the problem...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27105893/informat%C3%A4-on-given-by-mult%C3%A4-med%C3%A4-a-influence-on-anx%C3%A4-ety-about-extract%C3%A4-on-of-impacted-w%C3%A4-sdom-teeth
#20
Aysenur Nergiz Tanidir, Mustafa Sancar Atac, Ezgi Karacelebi
Dental fear is the fourth most common fear among the population. Well-informed patients seemed to be less anxious, and have the least anxiety before a planned procedure. Our aim was to find out the ideal way of information required by the patient before extraction of an impacted wisdom tooth. A total of 129 patients listed for extraction of impacted teeth were randomly allocated into three groups: control group (n=42); video dubbed by the surgeon (n=43); and silent video (n=44). Their sociodemographic variables and baseline anxiety scores were comparable, and each group was assessed for anxiety: (1) three days preoperatively, (2) after they had watched a video, (3) immediately preoperatively and (4) postoperatively...
July 2016: British Journal of Oral & Maxillofacial Surgery
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