Global Dentistry最新文献

{"title":"Evaluation of Human Periodontal Ligament and Osteosarcoma Cell Attachment and Viability on Particulate Bone and Dentin Allografts","authors":"","doi":"10.36879/god.20.000134","DOIUrl":"https://doi.org/10.36879/god.20.000134","url":null,"abstract":"Purpose: Various bone grafting substitutes have been used in the periodontics for bone regeneration which include autografts,\u0000allografts, xenografts and alloplasts. Autogenous particulate dentin has been used successfully as a bone grafting substitute. The aim\u0000of present study was to evaluate the effect of demineralized and mineralized freeze-dried bone allograft and particulate dentin on\u0000osteoblasts-like cells and human periodontal fibroblasts.\u0000Materials and methods: Demineralized freeze-dried bone allograft (DFDBA) and freeze-dried bone allograft (FDBA) and ground\u0000dentin was used in the study. Particulate dentin was divided into four groups according to the size of the particles and demineralization\u0000- small dentin (particle size less than 200 µm), small dentin demineralized, large dentin (particle size 250-1200 µm), large dentin\u0000demineralized. Effect of all the specimens was checked on osteoblast-like cells (MG63) and human periodontal ligament cell lines.\u0000Percentage of surviving cells was measured using colorimetric MTT assay spectrophotometrically on 7th and 14th day of the cell\u0000culture. Scanning electron microscopy (SEM) was used to check the cellular attachment.\u0000Results: Demineralized dentin matrix has shown significantly enhanced viable cell percentage for both the cell lines. DFDBA and\u0000demineralized dentin has reported comparable percentage of surviving cells. Dentin seems to be more compatible with osteoblastslike cells than fibroblast. FDBA has shown the least favorable results. Cellular attachment for both the cell lines can be appreciated\u0000on SEM images.\u0000Conclusion: Demineralized particulate dentin has reported considerable percentage of cell viability making it a reasonable option\u0000for bone grafting substitute.","PeriodicalId":252788,"journal":{"name":"Global Dentistry","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129076009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green Tea mouthwash for reducing dental plaque","authors":"","doi":"10.36879/god.20.000133","DOIUrl":"https://doi.org/10.36879/god.20.000133","url":null,"abstract":"Paraguay is a country popular for the use herbal products for health care. Extensive studies have been made on the natural mouthwashes with\u0000fewer side effects as an alternative to chemical ones. In the case of reducing dental plaque, a green tea mouthwash has been studied alone or\u0000combined with other natural agents.","PeriodicalId":252788,"journal":{"name":"Global Dentistry","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123302371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the Accuracy of an Intraoral Scanner: An Update on the Omnicam","authors":"","doi":"10.36879/god.20.000132","DOIUrl":"https://doi.org/10.36879/god.20.000132","url":null,"abstract":"Computerized optical impression making is one of the most exciting topics in dentistry today. Therefore, it is very important to know how\u0000accurate these devices are.\u0000Purpose: To investigate the influence of a software update of an intraoral scanner.\u0000Materials and Methods: Accuracy was tested in terms of trueness and precision. An acrylic model was scanned with an industrial scanner. The\u0000dataset was used as reference for the evaluation of the CEREC AC Omnicam datasets and statistical analyses implemented.\u0000Results: Trueness and precision values very significantly smaller with the latest software version as opposed to the previous version.\u0000Conclusion: Within the limits of the present study, the investigated intraoral scanner meets the highest standards in terms of trueness and\u0000precision. The authors strongly recommend to not use software other than the proprietary workflows to export files to the open STL file format.","PeriodicalId":252788,"journal":{"name":"Global Dentistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132393005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Maxillary sinusitis of odontogenic origin in relation to ectopic 2.8 associated with follicular dentigerous cyst: Combined transnasal and oral endoscopic approach, a case report","authors":"","doi":"10.36879/god.20.000131","DOIUrl":"https://doi.org/10.36879/god.20.000131","url":null,"abstract":"Purpose of the study: To describe the management of orosinusal pathology by combined transnasal endoscopy and oral combined.\u0000Methods: The 54-year-old patient underwent a dental and otolaryngological evaluation for left odontogenic maxillary sinusitis in relation to\u0000plausible dental follicular cyst of ectopic element 2.8. The symptoms reported at the time of access to the hospital were nasal obstruction and\u0000nocturnal rhonchopathy.\u0000To the ENT evaluation in videorinoscopy with rigid optics, complex deviation of the nasal septum was relevated with not any evident formations\u0000or pathological secretions. While on inspection of the oral cavity the mucous membranes appeared unscathed. Alveolus of 1.6 previosuly extracted\u0000was evident.\u0000The radiological examination, facial CT, revealed the left maxillary sinus almost completely occupied by a cystic appearance, with thin calcified\u0000walls and homogeneous content that has a dental element, probably the 2.8, which fenestrates the vestibular cortex of the lateral wall of the\u0000maxillary sinus. This lesion erodes the medial wall of the sinus, obliterating the ostio-meatal complex and imprinting the ipsilateral ethmoidal cells.\u0000Biohumoral tests showed normal coagulation parameters, indices of renal function, liver and ionemia.\u0000The patient under general anesthesia and oral intubation with a combined intervention of the left anterior FESS, intrasulcular flap from dental\u0000elements 2.7 to 2.3 with mesial releasing incision, moderate osteotomy, ectopic 2.8 extraction and enucleation of the cystic lesion with simultaneous\u0000closure of the orosinusal communication with advancement of the Bichat adipose bolla and closure by first intention.\u0000In the same session, the ENT moment is carried out trans nasally for total left uncinectomy, medium antrostomy with the union of the natural ostium\u0000and the accessory ostium. Bilateral lower turbinoplasty with bipolar forceps.\u0000The patient was then controlled after 15 days and six months, showing good healing and no signs of recurrence at the rhinoscopic check on the\u0000physical examination of the oral cavity.\u0000Results: based on the clinical and radiological aspect, the diagnosis of a follicular dentigerous cyst (WHO 2017) covered by a multi-layered\u0000non-keratinized paving epithelium, with moderate chronic inflammation, including gigantocellular and cholesteric crystals, is reached from the\u0000microbiological and histological examination. Necrotic amorphous material coexists including rare hyphae and fungal spores, with therefore\u0000mycotic and actinomycotic super infection.\u0000Conclusions: The combined oral and nasal intervention, allowed by the collaboration between the oral surgeon and ENT, has made it possible to\u0000shorten the healing time and to resolve the pathology without any sign of recurrence.","PeriodicalId":252788,"journal":{"name":"Global Dentistry","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127598810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Breast-feeding: Its preventive effect over malocclusions and breathdisorders during sleeping- An updated mini-review","authors":"","doi":"10.36879/god.20.000129","DOIUrl":"https://doi.org/10.36879/god.20.000129","url":null,"abstract":"","PeriodicalId":252788,"journal":{"name":"Global Dentistry","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129484903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Periodontal Plastic Surgery","authors":"","doi":"10.36879/god.19.000128","DOIUrl":"https://doi.org/10.36879/god.19.000128","url":null,"abstract":"Periodontal Plastic Surgery comprises a limited number of surgical procedures which focus on the establishment of normal morphology and\u0000architecture of periodontal tissues in order to achieve aesthetical, biological and functional outcomes. The main surgical techniques concern\u0000the correction of morphology, position and amount of gingiva and in some cases the reconstruction and augmentation of alveolar ridge. Those\u0000surgical procedures include the treatment of gingival recession, surgical crown lengthening, augmentation of the width of attached gingiva\u0000and,the vertical or horizontal augmentation of alveolar ridge. Each surgical technique is followed by determined indications, contra-indications,\u0000advantages, disadvantages and, predictability.","PeriodicalId":252788,"journal":{"name":"Global Dentistry","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133812969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mandibular Bone Defect Imaging Features in Cone Beam Computed Tomography: A Case Report","authors":"","doi":"10.36879/god.19.000127","DOIUrl":"https://doi.org/10.36879/god.19.000127","url":null,"abstract":"Mandibular bone defect or Stafne bone defect is usually an incidental finding in imaging examinations due to its lack of symptomatology. It is often\u0000observed as a radiolucent lesion with well defined limits. In this report it is demonstrated a case of mandibular bone defect close to the mandible\u0000angle, in a 16-year old female, that performed cone beam computed tomography examination in order to verify the proximity of the third inferior\u0000molar to the mandibular canal. In this case, it was verified that the defect was continuous to the mandible border and it had a thick sclerotic margin.\u0000No treatment is necessary to mandibular bone defects, but regular follow-ups are strongly recommended.","PeriodicalId":252788,"journal":{"name":"Global Dentistry","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121868943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Horseshoe Le Fort I osteotomy for gummy smile and facial asymmetry: Two cases","authors":"T. Shimo, S. Takeda, Y. Minamida, Humihiro Matsuzawa, Atsue Yamazak, N. Toriya, Y. Tomita, T. Kawakami, M. Iijima, H. Nagayasu","doi":"10.36879/gsl.dcr.2019.000120","DOIUrl":"https://doi.org/10.36879/gsl.dcr.2019.000120","url":null,"abstract":"Introduction: In cases with gummy smile or asymmetry of the maxilla, superior repositioning of the maxilla is required. If superior repositioning\u0000by a Le Fort I osteotomy alone is difficult, a horseshoe Le Fort I osteotomy can be used.\u0000Presentation of cases: Case 1: A 24-year-old Japanese woman patient presented with a gummy smile and an open bite. After we performed a\u0000horseshoe Le Fort I osteotomy, the maxillary segment was repositioned superiorly 3.0 mm at upper tooth number 1 (U1) and 5.0 mm at upper\u0000tooth number 6 (U6). Case 2: A 21-year-old Japanese man presented with severe facial asymmetry. After we performed a unilateral modified\u0000horseshoe Le Fort I osteotomy, the maxillary segment was superiorly repositioned 6.0 mm at the right U6.\u0000Discussion: This procedure eliminated the risk of intraoperative bleeding because it was unnecessary to remove bones around the descending\u0000palatine artery, and it was possible to maintain the chamber size of the nasal cavities.\u0000Conclusion: The horseshoe Le Fort I osteotomy is a reliable technique for cases with severe gummy smile or asymmetry of the maxilla.","PeriodicalId":252788,"journal":{"name":"Global Dentistry","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127251258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pansinusitis from Dental Origin: Pre and Post-Treatment Multi-Slice\u0000Computed Tomography Imaging","authors":"E. Ramos","doi":"10.36879/gsl.dcr.2019.000126","DOIUrl":"https://doi.org/10.36879/gsl.dcr.2019.000126","url":null,"abstract":"Oroantral communication is a teeth post-extraction complication defined as a communication created between the maxillary sinus floor and the oral cavity. If it is not treated, oroantral communication may progress to an oroantral fistula and/or sinusitis. Maxillary sinus communication with paranasal sinuses may allow the spread of sinusal disease, leading to the development of pansinusitis. Pansinusitis can progress to life-threatening intracranial complications, such as meningismus, focal neurological disorders, loss of consciousness and seizures. In this case report, it is described a case of post-extraction OAC which progressed to an oroantral fistula and pansinusitis, detected by multislice computed tomography. After the proper treatment, which included the use of antibiotics and communication surgical closure, multislice computed tomography revealed lack of opacification of paranasal sinus with an acceptable outcome.","PeriodicalId":252788,"journal":{"name":"Global Dentistry","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122046470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Knowledge, attitude and practice regarding gag-reflex in children among post-graduate students of paedodontics and preventive dentistry in India- An electronic cross-sectional survey","authors":"Roshani Patel, B. Dave, S. Bargale, K. Poonacha, Vaishnavi Shah","doi":"10.36879/gsl.dcr.2019.000122","DOIUrl":"https://doi.org/10.36879/gsl.dcr.2019.000122","url":null,"abstract":"Introduction: The gag reflex is a usual response for patients, considered to shield the airway and eradicate irritants from the posterior\u0000oropharynx and the upper gastro-intestinal tract. Gag reflex is a annoying problem in various dental techniques and may result in a compromised\u0000management. If the dentist efforts to recognize the circumstances that trigger disruptive gagging, this may optimize patient care and operational\u0000success.\u0000Aim: To evaluate the knowledge, attitude and practice regarding gag-reflex in children among post-graduate students of paedodontics and\u0000preventive dentistry in India.\u0000Methodology: A list of registered Post graduate Students with Indian Society of Paedodontics & Preventive Dentistry was obtained from the office\u0000of Indian Society of Paedodontics & Preventive Dentistry. A questionnaire was sent to all the participants through e-mail whose information was\u0000obtained from the office of Indian Society of Paedodontics & Preventive Dentistry. The questionnaire was sent twice to each student. A response\u0000was awaited for a period of 3 months.\u0000Results: 127 Post graduate Students thought that Anxiety and fear was a main reason for gag reflex in children. 233 Post graduate Students\u0000thought that during gag reflex there is no change in Pulse Rate of the children. 69 Post graduate Students Always changed or modified their\u0000impression technique or impression material in children with gag reflex. 173 (58.2%) Post graduate Students agree with rubber-dam application\u0000is useful to prevent gag reflex in children. 275 (92.6%) Post graduate Students did not take gagging severity index (GSI)/gag prevention index\u0000(GPI) before treating a child with gag-reflex.\u0000Conclusion: The study revealed that Post graduate students of paedodontics and preventive dentistry in India have the knowledge regarding\u0000patient’s gag, but their attitude and practice toward the management of the children with gag-reflex is less.","PeriodicalId":252788,"journal":{"name":"Global Dentistry","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115070462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}