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Odovtos - International Journal of Dental Sciences
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1659-1046 - ISSN (Online) 2215-3411
Published by Universidad de Costa Rica Homepage  [39 journals]
  • Gray Materials in Dentistry: The Latin America Paradox

    • Authors: Mauricio Montero-Aguilar DDS; MSc
      First page: 9
      PubDate: 2017-11-22
      Issue No: Vol. 20, No. 1 (2017)
  • Dental Pulp Regeneration: Insights from Biological Processes

    • Authors: Cristina Retana-Lobo DDS; MSD
      Pages: 10 - 16
      Abstract: One of the major approaches on dentistry research in this century is the development of biological strategies (tissue engineering) to regenerate/ biomineralize lost dental tissues. During dentin-pulp regeneration, the interaction between stem cells, signaling molecules, biomaterials and the microenvironment in the periapical area drives the process for dental pulp tissue engineering.  Understanding the signaling mechanisms and interactions involved with the biological process for the formation of a new tissue, is essential. The knowledge of the micro-environment is the key for the application of tissue engineering.  The present article is a short review of the current state of this topic, with the purpose of showing insights of pulp regeneration.

      PubDate: 2017-11-16
      Issue No: Vol. 20, No. 1 (2017)
  • Peripheral Cemento-Ossifying Fibroma with Uncommon Clinical Presentation:
           A Case Report

    • Authors: Suresh K. Sachdeva M.D.S., Sakshi Mehta B.D.S., Husain Sabir M.D.S., Purnendu Rout M.D.S.
      Pages: 17 - 23
      Abstract: Peripheral cemento-ossifying fibroma (PCOF) is a reactive gingival over growth, occurring frequently in the maxillary anterior region of teenage and young females. Peripheral cemento-ossifying fibroma (PCOF) is supposed to be originating from periosteum and/or periodontal ligament. A large number of factors have been implicated in the pathogenesis of PCOF, which includes trauma, local irritation, calculus and hormonal disturbances. The definitive diagnosis of PCOF is based upon its clinical, radiological and histological features. Because of the high recurrence rate (8-20%) of PCOF, a close post-operative follow-up is required. Herewith, we are presenting a case of PCOF in 24-year old female patient at an uncommon location.

      PubDate: 2017-10-23
      Issue No: Vol. 20, No. 1 (2017)
  • Multicentric Bone Lesions Due to Parathyroid Disease: A Case Report

    • Authors: Gerardo Gilligan DDS, Lorena Moine DDS, Ruth Ferreyra DDS; PhD, René Panico DDS, PhD
      Pages: 25 - 32
      Abstract: Introduction: Hyperparathyroidism is an endocrine disorder that could create parathyroid hormone hypersecretion conditions, propitious for bone tumors development. Although is not frequent, maxillary bones may be involved in the pathogenesis of these lesions. PATIENTS AND METHODS: In this case, a 56-year-old female is reported. An Hyperparathyroidism was diagnosed due to multiple maxillary and extra-maxillary multicentric bone lesions, with a predominance of giant cells, linked to her endocrine disorder. Discussion: The diagnosis of a Hyperparathyroidism Brown Tumor must meet serological, clinical and histopathological criteria. The multifocality of the lesions is the most remarkable clinical aspect in this case. For an adequate treatment of this entity is necessary an interdisciplinary and coordinate work between different areas of healthcare physicians and Oral Medicine specialist. 

      PubDate: 2017-11-16
      Issue No: Vol. 20, No. 1 (2017)
  • Surgical Management of a Firearm Injury in the Infraorbital Area

    • Authors: Heriberto Medina A. DDS; OMFS, Daniel Sansores E. DDS, Debora González K. DDS, M.P.D., Fabio Arriola P. DDS
      Pages: 33 - 39
      Abstract: The surgical management of firearm injuries to the zygomaticomaxillary complex is a topic that needs to be addressed with much care. The complications that can arise during treatment, as well as the potential residual problems that can appear, lead to the need of recognizing these injuries as a maxillofacial treatment challenge. The infraorbital zone is the second most common area of injury in the face, accounting for up to 45% of midfacial fractures. The case presented is of a 54 year old man affected by the backward firing of a gun rifle that caused an oblique impaction towards the posterior lateral inferior side of the infraorbital complex. He was rapidly stabilized with an antibiotic and analgesic scheme, yet presented the following: a comminute fracture of the orbit floor with consequent communication towards the maxillary sinus, a non-displacing fracture of the frontomalar suture, a non-displacing fracture of the zygomatic arch and a lesion with loss of osseous tissue in the petrous region of the temporal bone. Rigid fixation followed stabilization, and the area was covered with a titanium mesh.  Occasional tinnitus and photopsia were reported by the patient upon return, yet all other evaluated factors were in order. There have been different forms of management described in the literature, and it is recognized that each patient has different needs, therefore each case must be closely evaluated, so it is approached in the most appropriate manner.

      PubDate: 2017-11-16
      Issue No: Vol. 20, No. 1 (2017)
  • Interdisciplinary Approach to Smoking in Dental Practice: Psychological
           Intervention Techniques Application

    • Authors: Alejandro José Amaíz Flores DDS, Miguel Ángel Flores Barrios MSc
      Pages: 41 - 56
      Abstract: Currently, in the dental community there is confusion and doubt about the extent of professional responsibility in the intervention and prevention of smoking, which could be attributed, to a large extent, to lack of knowledge about it. However, the dentist is committed to actively participate in this addiction as part of oral treatment. Therefore, this article presents an updated review of the international literature related to smoking from the perspective of dental consultation, focused on the use of psychological strategies to offer an interdisciplinary approach, which frames the role of the dentist and his team. In this way, health psychology offers several intervention techniques that are highly effective in reducing or eliminating smoking, namely: motivational interviewing, response prevention, stimulus control, problem solving training, cognitive-behavioral, progressive training in anxiety and stress reduction, social skills training, anger management and aggressiveness, contingency management, self-control, aversive stimulation techniques, gradual reduction technique of nicotine and tar consumption (RGINA), couple and family therapy to deal with conflict situations in interpersonal relationships and group therapy.

      PubDate: 2017-11-16
      Issue No: Vol. 20, No. 1 (2017)
  • Evaluation of Microleakage by Gas Permeability and Marginal Adaptation of
           MTA and Biodentineā„¢ Apical Plugs: In Vitro Study

    • Authors: Karen Brenes-Valverde DDS, Elian Conejo-Rodríguez PhD, José Roberto Vega-Baudrit PhD, Mauricio Montero-Aguilar MSc, Daniel Chavarría-Bolaños MSc; PhD
      Pages: 57 - 67
      Abstract: The endodontic treatment of teeth with incomplete development is always a complex task. Nowadays, biomaterials such as bioceramics offers promising clinical evidence that supports its use. However, the standardization of its use for apexification purpose still needs a deeper understanding of the materials’ behavior. The aim of this investigation was to evaluate the marginal adaptability and microleakage by gas permeability of MTA and Biodentine™ apical plugs in an in vitro model. Materials and methods: Twenty-four single rooted human teeth were selected according to previously stablished inclusion criteria. All samples were prepared obtaining standard cylindrical internal canals with a diameter of 1.3 mm. Root canals were gently rinsed using 5.25% sodium hypochlorite and EDTA 17%. The apical 3mm and remaining coronal dental structure were sectioned to obtain 10mm roots. Roots were randomly assigned to 3 different groups as follows: GROUP A: MTA (n=10), GROUP B: Biodentine™ (n=10) and Group C: Control (positive n=1, negative n=3). MTA and Biodentine™ were prepared according to manufacturer’s indications, and apical plugs of 4mm were passively placed in the correspondent teeth. All samples were stored in saline solution for 7 days at 37°C before evaluation. Samples were mounted in cylindrical sample-holders using epoxy resin. Microleakage was evaluated with an automatic permeability detector that calculates nitrogen diffusion between the material-root interphase. After microleakage evaluation, the samples were recovered and analyzed by scanning electron microscopy (SEM). Microleakage results were analyzed using Chi-square and adaptation was evaluated with a descriptive analysis. Results: None of the evaluated materials completely avoided the nitrogen microleakage (positive leakage of 10% and 20% of samples for MTA and Biodentine™ respectively); with no statistical significant difference between groups (p=0.527).  All apical plugs showed good adaptation under SEM, at 30x, 200x, 1000x and 2500x; with microscopical structures similar to previous reports. Conclusions: Both bioceramics behave similar when used as apical barriers to avoid permeability, with acceptable marginal adaptation. Further in vivo studies are needed to validate these results.  
      PubDate: 2017-11-16
      Issue No: Vol. 20, No. 1 (2017)
  • Location of the Mental Foramen and Their Accessories in Peruvians Adults

    • Authors: Juana R. Delgadillo Avila DDS; MSc, PhD, Manuel A. Mattos-Vela DDS, MSc, PhD
      Pages: 69 - 77
      Abstract: The aim of the present study was the determine the location of the mental foramen and accessories, their relationships with the alveolar and basal rims found in Peruvians adults. A descriptive, transverse and retrospective study was carried out. The sample was composed of 100 cone beam CT scans of patients, between the ages of 20 to 55 years of age, these patients were attended at the clinic of the Faculty of Dentistry of Mayor National University of San Marcos UNMSM. Were considered tomograms of mandibular dentate patients taken during 2015, classified according to age and sex, identifying in them the location of the mental foramen and accesories in relation to a lower tooth, according to the classification of Al Jasser- Nwoku.The distance of the mental foramen on the left side to the alveolar ridge had an average of 12.62 mm and on the right side it had a mean of 12.90 mm and the distance from the mandibular ridge on the left side showed an average of 14.14 mm and on the right side was 13.91 mm. The relationship of the mental foramen to the teeth was located below the second mandibular premolar. The 14% presented accessory hole, predominating position 4 (at the level of the second premolar).

      PubDate: 2017-11-16
      Issue No: Vol. 20, No. 1 (2017)
  • Identification of the Most Appropriate Site for the Cold Test in Molar

    • Authors: Brenda E. Castillo-Silva MSc; PhD, Nuria Patiño-Marín MSc, PhD, Gabriel Alejandro Martínez-Castañón MSc, PhD, Carlo E. Medina-Solís DDS, MS, Norma Verónica Zavala Alonso MSc, PhD, Daniel Silva-Herzog DDS, PhD, Mariana Ramírez-Ortíz DDS, MSc, Martha Alicia Laredo-Naranjo DDS, MSc
      Pages: 79 - 88
      Abstract: A test frequently used to complement endodontic diagnoses is the cold test; however, in the last 20 years, authors have reported incorrect results within pulp sensitivity tests. Specifically, a high frequency of false results in posterior teeth, were found. The aim of this study was to identify the most appropriate site for the cold test in molar teeth with a need for endodontic treatment, calculating predictive values, accuracy and reproducibility. A cross-sectional study was performed, evaluating 390 subjects. A total of 152 subjects of both genders from the ages of 15-65 years old participated. The ideal standard was established by direct pulp inspection, and the cold test agent used was 1,1,1,2-tetrafluoroethane. The patients were divided into four groups in relation to the molar tooth: (1) mandibular first molar, (2) mandibular second molar, (3) maxillary first molar, and (4) maxillary second molar. 169 teeth and 676 sites were studied. (a) The most appropriate sites for cold test were the middle third of the buccal surface and cervical third of the buccal surface in the mandibular molars with the following results: Middle third of the first molar: Accuracy 0.93, positive predictive value 0.90 and negative predictive value 0.96. Middle third of the second molar: Accuracy 0.93, positive predictive value 1.00 and negative predictive value 0.90. In relation to third cervical the results were: First molar: Accuracy 0.93, positive predictive value 0.89 and negative predictive value 0.97 y second molar: Accuracy 0.93, positive predictive value 1.00 and negative predictive value 0.90. (b) The highest reproducibility was observed in the middle third of the buccal surface with cervical third of the buccal surface in the mandibular second molar (1.00). The most appropriate site and reproducibility of the sites are auxiliary to complement endodontic diagnose with the cold test.

      PubDate: 2017-07-04
      Issue No: Vol. 20, No. 1 (2017)
  • Evaluation of the Sedative Effect of Midazolam with and Without Ketamine,
           by Subcutaneous Via in Pediatric Dental Patients

    • Authors: Daniel Trejo-Herbert DDS, Ricardo Martínez-Rider DDS, Javier Lara-Guevara MD, Socorro Ruiz-Rodríguez DDS; MS, Arturo Garrocho-Rangel DDS, PhD, Amaury Pozos-Guillén DDS, PhD, Miguel Rosales-Berber DDS, MS
      Pages: 89 - 97
      Abstract: Children's fear and anxiety about dental treatment can lead to difficulties in the behavior management by the practitioner, which can be a barrier to successful dental treatment. Non cooperative children may need dental treatment under sedation, which is indicated when the non-pharmacological behavioral guidance is unsuccessful. There are randomized controlled trials comparing different sedative protocols for dental procedures; however, evidence of superiority from one form over another is weak.  The aim of the present study was to evaluate the sedative effect of midazolam subcutaneously, with and without ketamine, on dental procedures performed in non-cooperative pediatric patients.  A randomized, crossover clinical trial with single blinding was performed in 13 children (10 males and 3 females) from 19 to 48 months of age, ASA I and Frankl I behavior. The two methods were applied in the same patient, and the order of the same was assigned randomly, for the two treatment appointments. In each session were evaluated the patient's general behavior, body movements and crying through the modified Houpt scale. In addition, heart rate and oxygen saturation were monitored by means of a pulse oximeter.

      PubDate: 2017-11-16
      Issue No: Vol. 20, No. 1 (2017)
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
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