international journal of stomatology & occlusion medicine

Publisher: Springer Verlag

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Other titles International journal of stomatology and occlusion medicine
ISSN 1867-2221
OCLC 316227121
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

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Springer Verlag

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Publications in this journal

  • international journal of stomatology & occlusion medicine 10/2015; DOI:10.1007/s12548-015-0136-4

  • international journal of stomatology & occlusion medicine 07/2015; DOI:10.1007/s12548-015-0128-4
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    ABSTRACT: Background The present work aimed to describe the incidental findings in a study of immediate loading of dental implants in pigs, i.e., the correlation between implant integration and the side of implantation. Methods In 11 adult miniature pigs, maxillary and mandibular premolars and the first molar were bilaterally extracted. A total of 100 dental implants with different surface characteristics were evaluated in the first stage. In the second stage, the two types of implants that yielded the best results were tested under loading conditions for 6 months. Statistical analysis included a one-way analysis of variance and a Holm-Sidak test. Results Histometric results showed significant differences in the bone-to-implant contact depending on the side of implantation. Higher rates of contact were found for implants placed in the left side; this was not related to the type of implant used. Conclusions Our results indicate that the side of implantation is important in dental implant research, at least in miniature pigs. We recommend that for each surgical procedure notes should be made about the side first operated on and whether the dentist was right- or left-handed. Moreover, special attention should be paid to objects placed in the animal pens so as to avoid the development of inappropriate behaviors in animals.
    international journal of stomatology & occlusion medicine 06/2015; 8(2). DOI:10.1007/s12548-015-0126-6
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    ABSTRACT: Background The aim of the present study was to evaluate the validity of the German version of the Oral Health Impact Profile (OHIP-G) in comparison with the Visual Analogue Scale (VAS) and to evaluate whether gender has a potential influence on OHIP scores and dimensions in oral lichen planus (OLP) patients. Methods Patients diagnosed with OLP between 2011 and 2013 at the Department of Oral Surgery, Medical University Vienna, were included in this cross-sectional prospective study. Patients were evaluated using the Clinical Severity Index (CSI) and OHIP. Results Out of 62 patients, 69 % were women with a mean age of 59 ± 11 years and 31 % men with a mean age of 59 ± 15 years. The mean CSI score was 2.6 ± 1.3 in women and 2.5 ± 1.3 in men. The OHIP-G score for women was 59.42 ± 39.26 and 37.84 ± 27.15 for men. Linear regression analysis showed a significant impact of disease severity and gender on total scores, the subscore physical pain, and the dimension orofacial pain. The four additional items in the German version were significantly influenced by gender. Conclusions Beside clinical severity, gender influences the perception of pain significantly. Therefore pain measures should be used to compare intraindividual changes.
    international journal of stomatology & occlusion medicine 06/2015; 8(2). DOI:10.1007/s12548-015-0123-9
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    ABSTRACT: Various studies have endorsed the use of corticosteroids for minimizing the postoperative sequelae including trismus and swelling following surgical extraction of mandibular third molars. The exact dosage, mode of administration, and time of administration of corticosteroids varies in the literature. In this review, we propose and discuss a novel method of administration of corticosteroids for surgical removal of impacted mandibular third molars. The time and dose required to achieve a reliable clinical effect are also discussed. This article highlights and reviews the novel technique of administration of corticosteroid via intraspace injection, the composition of the drug used for this technique, the physical and chemical evaluation of the twin-mix solution, and comparative clinical trials with a control drug.
    international journal of stomatology & occlusion medicine 06/2015; 8(2). DOI:10.1007/s12548-015-0124-8
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    ABSTRACT: With the introduction of three-dimensional imaging in the field of dentistry, cone beam computed tomography (CBCT) has generated great interest in various applications in orthodontics. As orthodontic treatment revolves around correcting a malocclusion in three dimensions, the earlier use of two-dimensional radiographs limited our view of anatomical structures greatly. In orthodontics, CBCT can be very useful in the assessment of limits of tooth movement according to the envelope of discrepancy, study of craniofacial morphology, study of dental development, assessment of the airway, assessment of treatment outcome, and patient education. In addition, many relationships of the craniofacial complex, such as the position of the mandibular condyles in the temporomandibular fossa with respect to the occlusal scheme and the association of airway abnormalities to craniofacial morphology, cannot be evaluated with conventional imaging approaches. In this article, we shed light on the current practices and use of CBCT in orthodontics, its advantages to the orthodontist and the patient, and whether CBCT can replace traditional orthodontic imaging techniques.
    international journal of stomatology & occlusion medicine 03/2015; 8(1):1-7. DOI:10.1007/s12548-015-0121-y
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    ABSTRACT: Objective: The aim of this study was to examine, after setting several restorations, the influence of adjusted occlusal interference during gum chewing on blood flow in the prefrontal area as determined using near-infrared spectroscopy. Material and methods: The physiological rate was assessed using a visual analog scale (VAS) questionnaire. We selected 16 patients who desired prosthetic restorative treatment on the lateral dentition, and eight healthy volunteers. Subjects were divided into three eight-person groups. One group received restorations on the premolar area (PA), another group received restorations on the molar area (MA), and the control group (CT) received no prosthetic restorations. The spectroscope was fastened to the frontal region of the head after placement of the final restoration, but before adjustment. Results: Pre-adjustment (first gum chewing for CT) blood flow in the prefrontal cortex was measured during gum chewing. Blood flow was again measured during gum chewing after the restoration (second gum chewing for CT) had been adjusted in accordance with the subjective assessment of the patient while wearing the device. The VAS provided quantification of comfort during gum chewing before and after restoration adjustment. For the PA and MA groups, adjusting restorations decreased discomfort significantly during gum chewing. Moreover, in the MA group, prefrontal blood flow was significantly reduced, and blood flow correlated with discomfort. Conclusions: Activation of the prefrontal area may provide an objective criterion for judging the functionality of occlusion after prosthetic occlusal reconstruction and/or orthodontics.
    international journal of stomatology & occlusion medicine 03/2015; 8(1):22-28. DOI:10.1007/s12548-015-0122-x
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    ABSTRACT: Background The aim of this study was to determine the frequency and etiology of maxillary sinus retention cysts (RCs) in a Turkish patient population in the Middle Black Sea region by using panoramic radiography. Material and methods We retrospectively reviewed 9,659 panoramic radiographs that were taken from March 2012 to January 2014. The number, location, and the size of the RCs as well as the age, gender, dental status, and radiographic dental findings of the patients were recorded. Results Of the 9,659 patients, 158 had RCs with a frequency of 1.6 %. Male patients had significantly more RCs than female patients did (p 2 with a mean of 3.7 cm2. Conclusion This study shows that the prevalence of RCs is low (1.6 %) and the frequency of RCs diminishes slightly with age. Most of the patients that had RCs were dentate, and dental findings were observed in around 50 % of the patients. Therefore, dental pathology may be considered to be a contributing factor for RCs. According to the findings of our study, the size and prevalence of RCs are not age dependent.
    international journal of stomatology & occlusion medicine 03/2015; 8(1):17-21. DOI:10.1007/s12548-015-0120-z
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    ABSTRACT: Background The aim of this study was to assess the efficacy of an oral hygiene protocol for the improvement of oral health and periodontal conditions in maxillofacial cancer patients. Patients and methods The study comprised 30 patients, 12 men (40 %) and 18 women (60 %), with a mean age of 54 ± 15 years (range, 39-69 years). They were all oral cancer patients, not completely edentulous, treated either with or without adjuvant radiotherapy. They were scheduled for a standardized protocol of five medical examinations every 20 days. The plaque index (PI) and the community periodontal index of treatment needs (CPITN) were used to asses oral hygiene and periodontal conditions, recorded on a 3-point scale (poor/good/optimum). Results Poor oral hygiene conditions were reported in 26 patients (86.66 %, group 1) on the first medical examination (T0), while four patients (13.34 %, group 2) had good oral hygiene. Group 1 continued with the scheduled check-ups every 20 days (T1, T2, T3, and T4), while group 2 needed only a second medical examination (T1) to achieve an optimum state of oral health. At the end of the treatment, 24 patients (80 %) reached good/optimum (n = 16 and n = 8, respectively) oral hygiene and were therefore included in the maintenance program (1/90 days). The remaining part of the sample (n = 6, 20 %) showed poor oral hygiene after five medical examinations and is currently in treatment to improve periodontal conditions and oral hygiene. Conclusions The development of a protocol for oral hygiene in maxillofacial cancer patients increases the success of prosthetic rehabilitation and improves their quality of life.
    international journal of stomatology & occlusion medicine 03/2015; 8(1):8-11. DOI:10.1007/s12548-014-0117-z
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    ABSTRACT: Background Sleep bruxism (SB) causes many dental problems and complications with fixed partial dentures on implants. Although it is an important issue in clinical dentistry, no reliable treatment is available for SB. In the present study, we employed the electromyographic biofeedback device SleepGuardTM, which is attached to the forehead, detects SB, and alerts subjects with a gentle beeping sound to stop SB. The aim of the present study was to clarify the effects of biofeedback treatment on the incidence of masticatory muscle activity, sleep quality, and psychological stress levels. Materials and methods Ten subjects (five male and five female subjects) participated in the study, and a crossover design was used. Sleep measurements were taken on three consecutive nights to obtain data without SleepGuardTM (baseline group), with SleepGuardTM with the beeping sound (on group), and with SleepGuardTM without the beeping sound (off group). Data obtained on the final day were evaluated. STAI-JYZ scores were assessed and salivary chromogranin A (CgA) levels and cortisol concentrations were measured to compare psychological and physical stress after sleep. Friedman’s and Dunn’s tests were used to compare each parameter among the three groups. Results A marked decrease was observed in the incidence of SB events per hour in seven subjects in the on group. The beeping of SleepGuardTM did not affect the percentage of sleep stages, salivary CgA levels, cortisol concentrations, or STAI-JYZ scores. Conclusion Our results suggest that biofeedback therapy with a beeping sound inhibited SB without negatively impacting sleep quality or psychological stress.
    international journal of stomatology & occlusion medicine 01/2015; DOI:10.1007/s12548-015-0131-9
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    ABSTRACT: Background Onplants are skeletal orthodontic anchorage devices that serve as alternatives to the frequently used miniscrews and palatal implants. Since onplants are not placed in bone, immediate loading is not possible and treatment may be prolonged. The purpose of this study was to improve the onplant surface by nanocrystalline diamond (NCD) coating and bone morphogenetic protein-2 (BMP-2) biofunctionalization to enhance osseointegration. Materials and methods Forty-eight onplants were placed on the palate and the mandible of three domestic pigs. The onplants were divided into three groups of the same size: (1) uncoated, (2) coated with NCD, (3) coated with NCD and functionalized with BMP-2. After 6 weeks, the pigs were sacrificed and the samples were subjected to radiographic, histologic, and histomorphometric analyses. Results Ten of the 48 onplants were lost. There was no significant difference between the samples in the upper and the lower jaw. The BMP-2 functionalized onplants showed higher bone-to-implant contact than the other groups albeit without significance. Conclusion The results of this pilot study show that BMP-2 biofunctionalization of NCD-coated onplants improves osseointegration and may suggest its clinical use in orthodontics. Due to the high loss rate, more investigations are required to confirm the beneficial effects and the current data should be interpreted with caution.
    international journal of stomatology & occlusion medicine 12/2014; 7(4). DOI:10.1007/s12548-014-0116-0
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    ABSTRACT: Nicotinamide (pyridine-3-carboxamide), an amide, active form of vitamin B3, is used to treat a variety of dermatologic conditions, including skin cancer. Limited data are available regarding the adverse effects of nicotinamide in the literature. Here, we report a case of gingivitis associated with nicotinamide. A 35-year-old female patient was referred to the Department of Periodontics for the treatment of bleeding from the gums during brushing. The patient's history revealed that she had been on 12 mg/day nicotinamide for the prophylactic treatment of skin cancer for 5 months. In the absence of an obvious cause, the condition was diagnosed as nicotinamide-associated gingivitis. After consultation with the dermatologist, the drug was stopped and the patient responded favorably to periodontal treatment. Non-plaque-induced nicotinamide-associated gingivitis should always be suspected in a patient who is taking nicotinamide and has persistent gingivitis that does not respond to periodontal treatment.
    international journal of stomatology & occlusion medicine 12/2014; 7(4):115-117. DOI:10.1007/s12548-014-0115-1
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    ABSTRACT: Wider alveolar clefts/fistulae and maxillary dentoalveolar defects pose problems in achieving complete closure because of the requirement of a greater volume of bone as a graft. Segmented osteotomies have been used successfully for the repositioning of minor segments; however, in major segmented movements, the closing of the flap and the blood supply of the osteotomized segment may be compromised. Interdental distraction osteogenesis has overcome this problem by creating a segment of new alveolar bone and complete approximation of wider alveolar defects. This case report shows an effective and efficient way of distraction using a modified Hyrax appliance.
    international journal of stomatology & occlusion medicine 12/2014; 7(4):111-114. DOI:10.1007/s12548-014-0112-4
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    ABSTRACT: Purpose The purpose of this research was to study the stress distribution at the bone–implant contact in the pick-up implant impression technique. The mechanical properties and the curing dynamics of Pattern Resin LS were previously investigated. Materials and methods Measurements of the elastic modules of Pattern Resin LS were carried out after complete curing by standard stress–strain tests and a three-point bending technique. A specific laboratory set-up was implemented to monitor the curing dynamics and the linear contraction by using optical imaging methods. A finite element model (FEM) was created and a complete assembly was made with 33 solid bodies representing the main components of the system including the external portion of cortical bone, the internal portion of trabecular bone, six implants, six copings, one bridging structure (modular individual tray), six modules, and six pattern resin layers to fill up the interstitial spaces. Isotropic characteristics for cortical and trabecular bone were incorporated. The stress distribution was measured at the total body of the bone–implant interface, at the external cortical bone surface, at the coping–implant connection area, and at the tray–coping junction. Parametric analysis was also done to study the behavior of two types of internal connection in the impression phase: type A consisting of a 0.4 mm tube-in-tube connection with a triangular head by three cams (Cam-Log Biotechnologies, Germany); type B consisting of a 0.5-mm internal hexagonal connection (Biomet 3i, USA). Results The measured values of Young’s modulus and the flexural modulus of the resin were 1.58 ± 0.12 GPa and 2.07 ± 0.24 GPa, respectively. The final volume contraction was found to be strongly dependent on the powder/liquid ratio; specifically, the tests suggested that the highest value of the powder/liquid ratio (2:1) was the most favorable one. In all cases, however, the Pattern Resin behavior was within the linear elastic range, without any permanent deformation or detachment. At individual tray–Pattern Resin interfaces, a stress of about 20.0 MPa was produced for each component; FEM analysis showed that the stress level at the implant–transfer copings connection was higher than that at the bone–implant interface. The trabecular and cortical bone showed the lowest level of stress concentration. B-type transfer showed a higher stress at the transfer coping–implant connection; A-type transfer coping allowed for a higher deformation area, increasing the risk of detachment. Conclusions The mechanical properties of Pattern Resin LS seem to be appropriate for use in the pick-up impression technique thanks to the low-volume contraction, the capabilities to dampen misfits, and permanent deformation effects. The shape of the copings affects the values of the stress both in the transfer coping–implant connection zones and at resin–transfer coping interfaces. A thicker clearance of the module–tray connection helps in reducing the mechanical stress. The FEM analysis showed that the removal procedure of the pick-up implant impression tray does not produce any irreversible damage on the cortical and trabecular bone structure. Since the yield threshold was high, the stress distribution at the bone–implant–coping configurations was largely within the safety range for the multiple internal-connection implants, in combination with a modular individual impression tray.
    international journal of stomatology & occlusion medicine 12/2014; 7(4):97-104. DOI:10.1007/s12548-014-0114-2
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    ABSTRACT: Exposure to microgravity and the space environment during short and long duration space missions has important medical and health implications in astronauts. Numerous counter measures have been developed and tested for moderating these physiological changes. The acclimatisation of astronauts to these conditions is of utmost importance. Aeronautical dentistry is a newly recognized speciality in dentistry concerning the application of dentistry to aeronautical environments. Various orofacial structures are affected in an outer space. An aeronautic dentist has to be prepared to screen and select only those astronauts with optimal oral health. Also, an aeronautic dentist has to be prepared to face any emergencies that may arise due to exposure to microgravity. This article highlights the effects of microgravity on human body with emphasis on orofacial structures.
    international journal of stomatology & occlusion medicine 12/2014; 7(4):91-96. DOI:10.1007/s12548-014-0113-3
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    ABSTRACT: Background Peripheral giant cell granuloma (PGCG) is a common reactive lesion of the gingiva and alveolar ridge. The lesion is characterized by several histopathological features and cellular cannibalism according to the recent literature. The aim of this study was to examine and analytically record the histopathological features of PGCG in an attempt to contribute to a better knowledge of the microscopic characteristics of this lesion. Methods Archival sections from 54 cases of PGCG were examined and the histopathological features were recorded. Results Cannibalistic type I multinucleated giant cells were found in all cases (100 %). Interstitial hemorrhage and hemosiderin deposits were seen in 92.6 % of the cases. In addition, granules of hemosiderin in type I multinucleated giant cells were occasionally observed. Type I multinucleated giant cells were found in intimate contact with vessels and within the lumen of vessels in 35.1% and 20.3 % of the cases, respectively. Bone was present in 31.5 % of the cases and was most often woven in combination with lamellar bone. Ulcerated (74.1 %) and hyperplastic mucosal lining epithelium (62.2 %) were most often observed. Chronic and both acute and chronic types of inflammatory infiltration and mild intensity of inflammatory infiltration were most often found. Conclusion In addition to the common microscopic features the data showed that only type I multinucleated giant cells of PGCGs have cannibalistic behavior, were occasionally involved in phagocytosis of hemosiderin and sometimes entered the lumen of vessels with an as yet unknown mediated process.
    international journal of stomatology & occlusion medicine 09/2014; 7(3):63-67. DOI:10.1007/s12548-014-0108-0