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Language Journal of Clinical and Experimental Dentistry. 2019. Vol. 11, no. 9
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- Odontomas are associated with impacted permanent teeth in orthodontic patients(2019) da Silva, Vanessa-Silvestre-de Aquino; Pedreira, Renato-do Prado-Gomes; Sperandio, Felipe-Fornias; Alves Nogueira, Denismar; de Carli, Marina-Lara; Hanemann, João-Adolfo-CostaOdontomas are the most frequent odontogenic tumors in the oral cavity and can result in failure of eruption of permanent teeth or be associated with impacted teeth. The present study evaluated the prevalence of complex and compound odontomas in non-syndromic patients prior to the onset of orthodontic treatment. Panoramic radiographs of 4,267 non-syndromic patients were evaluated; 22 cases were included being 54.5% complex and 45.4% compound odontomas. The sample was composed predominantly by White males with mean age of 14.5 years. Complex odontomas were commonly found in the maxilla (83.3%) while compound type was mostly located on mandible (60%), presenting a significant association (P=0.027). Moreover, odontomas were significantly associated with impacted teeth (P<0.0001). The most frequently odontoma-associated impacted teeth were lower canines, followed by upper central incisors and upper canines, while impacted teeth with no odontoma were predominantly upper canines, lower second premolars and upper second premolars. Compound and complex odontomas showed mean size of 10.5 and 7.25 mm, respectively, presenting significant association between lesion size and odontoma type (P=0.021). Odontomas affected mainly White male patients with mean age of 14.5 years, being the complex type commonly found in the maxilla and the compound type mostly located on mandible. Furthermore, odontomas were significantly associated with impacted teeth, affecting mainly lower canines. Early diagnosis and correct treatment are essential to avoid any complications, such as prolonged retention of primary teeth and delayed eruption of permanent teeth.
- Comparison of torque expression in esthetic brackets(2019) Martelli, Karine; Freitas, Karina-Maria-Salvatore; Negreiros, Patrícia-de Oliveira; Janson, Guilherme; Cançado, Rodrigo-Hermont; Valarelli, Fabricio-Pinelli; de Freitas, Marcos-RobertoThe objective of this work is to test the null hypothesis that there is no difference in the torque expression among different esthetic brackets. Five ceramic self-ligating brackets (In-Ovation C ? GAC, Damon Clear?Ormco, QuicKlear-Forestadent, Click-It -TP Orthodontics, Clarity SL-3M Unitek) and 4 ceramic conventional brackets (Inspire Ice?Ormco, InVu Ceramic-TP Orthodontics, Ceramic Roth?Morelli, Clarity Metal-Reinforced Ceramic Bracket-3M Unitek) were selected. Metallic Damon MX self-ligating bracket (Ormco) was used as control. Third-order moments were measured at 12º, 24º and 36º using an archwire torsion device associated with a Universal Testing Machine (EMIC DL2000), with 0.019x0.025-inch stainless steel wire. Anova followed by Tukey tests were used for intergroup comparisons. In all tested angulations the Damon Clear bracket presented the highest torque expression, followed by Clarity, Clarity SL and Damon Mx brackets, with the worst torque expression shown by the InVu Ceramic bracket. The InVu Ceramic demonstrated the largest while the Damon Clear brackets demonstrated the smallest slot height and clearance. The null hypothesis was rejected since torque expression was different among the esthetic brackets evaluated. It was also concluded that the slot height is directly related to torque expression.
- Stress distribution in fixed mandibular prostheses fabricated by CAD/CAM and conventional techniques : photoelastic and strain gauge analyses(2019) de Medeiros, Rodrigo-Antonio; dos Santos, Daniela Micheline; Pesqueira, Aldiéris Alves; Campaner, Marcio; Bittencourt, Sandro; da Silva, Emily-Vivianne-Freitas; Goiato, Marcelo CoelhoThe aim of this study was to evaluate the distribution of stress in complete fixed mandibular prostheses with infrastructures (IE) fabricated with different materials and techniques, under compressive force. A model of an edentulous mandible, which received five 4x11 mm external hexagon implants between the mental foramens, was fabricated. The groups were divided into: Group I - IE in nickel-chromium with an acrylic resin occlusal coating; Group II ? IE in nickel-chromium with a ceramic occlusal coating; Group III ? IE milled in zirconia with a ceramic coating. For the photoelastic methodology, 70 N axial loads were applied in three regions. Photographic images were taken and analyzed according to the number of high-intensity fringes. For the strain gauge methodology, the measurement of stresses was performed in two distinct regions. The same compression tests described earlier were then performed. The registered stress values were grouped in tables and submitted to two-factor variance analysis (ANOVA) and the Tukey test with 5% significance. The results of the two methodologies demonstrated smaller stress values for Group I, when compared to the other groups. It was possible to conclude that the complete fixed prostheses, with infrastructures cast in metal and acrylic occlusal coating, demonstrated better biomechanical results.
- Severity of irritable bowel syndrome in patients with temporomandibular disorders : a case-control study(2019) Mobilio, Nicola; Iovino, Paola; Bruno, Vincenzo; Catapano, SantoTo assess the risk and severity of IBS in a population of TMD patients. Subjects for the study group were recruited from patients attending the Dental Clinic. Health controls (HC) were recruited among patients? friends and clinic staff. All subjects filled in the RDC/TMD questionnaire and the ROME III questionnaire for the diagnosis of IBS. The IBS Severity Scoring System (IBS-SSS) was used to evaluate the severity of each case of IBS. Categorical variables were compared through the Chi square test. The risk of having abdominal pain was analysed using logistic regression. Twenty-two (46.8%) cases of IBS were diagnosed among TMD patients, whereas only 4 (11.4%) were in the HC group. This difference was statistically significant (?2(1)=11.6; p<.01). The differences in the distribution of IBS-SSS were statistically significant (?2(3)=12.49; p<.05). The regression model resulted statistically significant (?2(5)=24.08; p<.001, R2=.37): abdominal pain was significantly related to nonspecific physical symptoms independent of the other variables. TMD patients had a greater risk of having IBS compared to HC. TMD patients presented also more severe form of IBS than HC.
- Sialadenoma papilliferum : bibliometric analysis(2019) de Vasconcelos II, Antonio-Jorge-Araújo; Gerber, Luana-Rafaela; Saraiva, Stanny-Hagath-Maciel; de Vasconcelos, Pâmela-Oliveira; Cabral, Lioney-Nobre; Pinheiro, Tiago NovaesSialadenoma papilliferum is a benign rare condition of salivary glands showing a characteristic papillary growth of the ductal epithelium that ends up being confused with more frequent lesions of the oral cavity. Objectives: To perform a bibliometric analysis of all articles about Sialadenoma papilliferum in the oral cavity and to add a singular case report of Sialadenoma in the lower lip. A total of 36 publications referring to Sialadenoma papilliferum in the oral cavity from the PubMed platform was reviewed. The specific data were collected, and a bibliometric analysis was performed using Microsoft Excel. The results obtained were then compared with this new case report. The people most affected with sialadenoma were white males at the average age of 56. The lesion was asymptomatic, usually white or red, with an average size of 1.4 cm, and the palate was by far the most affected site. The majority of the lesions were excised, and only two cases indicated recurrence. With surgical removal, Sialadenoma papilliferum has a favorable prognosis and no further treatment is required. Due to few recorded cases of recurrence, a long follow-up period is recommended to ensure that the lesion does not redevelop.
- Apps for oral hygiene in children 4 to 7 years : fun and effectiveness(2019) Zotti, Francesca; Pietrobelli, Angelo; Malchiodi, Luciano; Nocini, Pier Francesco; Albanese, MassimoNowadays apps in preschool age are largely used in learning improvement. The aim of this work was to test effectiveness of apps in improving oral hygiene in children patients aged from 4 to 7 years and evaluating correlation between parents educational attainment and children oral hygiene. 100 patients aged from 4 to 7 years were randomly assigned by an external office in the study group (SG: 32 females, 18 males) and in the control group (CG: 28 females and 22 males). Plaque index (PI) and carious lesions localisation were detected. At baseline all patients and one of the parents were instructed at chair-side about the proper oral hygiene techniques. SG patients were also given app as an aid in oral hygiene practice. Follow-up was 12 months. Measurements were made every three months at chair-side visits. Information about children compliance in oral hygiene and educational level of parents were obtained by questionnaires at t0 and after 12 months. SG patients showed stronger oral hygiene and PI lower than those in CG. Questionnaire showed higher compliance of SG patients and parents educational level seemed to affect children oral hygiene. Apps in children allowed achieving encouraging results with improvement of oral hygiene and health.
- A comparative quantitative & qualitative assessment in orthodontic treatment of white spot lesion treated with 3 different commercially available materials - In vitro study(2019) Yadav, Pooja; Desai, Hina; Patel, Kalpesh; Patel, Nikunj; Iyengar, ShreyaTo comparatively evaluate the esthetic improvement of white-spot lesions (WSLs) treated by: BiominF, CPP-ACP paste with fluoride & ICON resin infiltration, using Spectrophotometer & Diagnodent. The study was done using 72 sound permanent extracted premolars, divided into four groups (18 teeth per group). After taking the ethical approval the study was commenced. WSLs were created on human premolars and randomly assigned to four groups: Group A: Artificial Saliva, Group B: CPP-ACP with fluoride, Group C: BiominF, Group D: Resin infiltration (Icon). The color change (?E) of each specimen was measured with a Spectrophotometer (VITA Easy Shade Compact), and fluorescence loss (?Q) was measured by a laser fluorescence device (DIAGNOdent, Kavo, Biberach, Germany), at different time points after treatment: baseline (0 weeks), 2 weeks, 4 weeks, and 6 weeks. The ?E and ?Q baseline values for the four groups before the treatments did not differ significantly. Icon treatment improved the WSL color significantly and gave the lowest ?E (5.12± 3.92) & ?Q (1.64 ±0.72) compared with other treatments at end of 6 weeks (P< .01). In the BiominF and CPP-ACP with fluoride treatment groups, ?Q & ?E showed significant recovery compared with the baseline values (P< .05). Within the limitations of the study, it can be concluded that all the three remineralizing agents used in the study could effectively remineralize artificial enamel caries and showed improvement in color change and fluoresence as compared to the baseline. Therefore they can be effectively used for the treatment of the white spot lesions.
- A systematic analysis of evidence for surgically accelerated orthodontics(2019) Mota-Rodríguez, Alejandra-Nathaly; Olmedo-Hernández, Oralia; Argueta-Figueroa, LilianaCorticotomy is a technique presumed as useful to decrease the time for orthodontic treatment, however, it is necessary to do a systematic review in order to determine if there is enough scientific evidence to back up the use of Corticotomy to accelerate the treatment. Data was stockpiled from the electronic database such as PubMed, Cochrane, Scopus y Science Direct, according to the PRISMA linings for systematic reviews, using the following keywords: accelerated movement of the teeth AND osteotomy AND piezocision AND corticotomy AND orthodontics. Only English, Spanish and French language articles that met the criteria needed were included. In the different accelerated orthodontics techniques, a significant reduction in the total time of orthodontic treatment was obtained. There were no major complications reported in any study. The less invasive procedures had better acceptance. The surgical approaches are not only limited to usual orthodontic treatments, but they have also been used as an alternative for the approach of a palatal fistula in a patient with bilateral cleft lip and palatine orofaciodigital syndrome Type I. There has been a growing interest in the use of alveolar corticotomies as an adjunct to orthodontic treatment, due to a deeper understanding of its effects and a more robust investigation based on the evidence. All published results indicate a decrease in the total treatment time.
- Geographic stomatitis : an enigmatic condition with multiple clinical presentations(2019) Netto, Juliana-de Noronha-Santos; Dias, Marielle-de Campos; Garcia, Thais-Roberta-Ura; Amaral, Simone-de Macedo; Miranda, Águida-Maria-Menezes-Aguiar; Pires, Fábio-RamôaGeographic stomatitis is an uncommon inflammatory condition of unknown etiology. It is characterized by reddish areas surrounded by white borders affecting any location in the oral cavity and presenting a migratory and cyclic pattern. The most common affected sites include buccal mucosa, labial mucosa and mucobuccal fold. Some patients can complain of pain or burning sensation. There are few reports in the literature about this entity and its relationship with other oral and cutaneous conditions such as fissured tongue, Reiter?s syndrome, atopy and psoriasis has been suggested but it is still controversial. In the present study we describe three cases of geographic stomatitis associated with fissured tongue. Lesions involved the buccal mucosa, labial mucosa, soft palate and mucobuccal fold and all cases were diagnosed based on their clinical features. All patients were oriented about the innocuous behavior of the condition and were advised to avoid exposure of the lesions to irritation factors. The three presented cases highlighted the importance of a detailed oral mucosal examination by clinicians and provided further information about the natural history and clinical presentation of geographic stomatitis.
- Comparison of analgesic effects of intravenous and intranasal ketorolac in patients with mandibular fracture-A Randomized Clinical Trial(2019) Yazdani, Javad; Khorshidi-Khiavi, Reza; Nezafati, Saeed; Mortazavi, Ali; Farhadi, Farrokh; Nojan, Farhad; Ghanizadeh, MiladSimilarity of pharmacokinetics of intranasal ketorolac to the intravenous form and other advantages have promoted its application. This study compared the analgesic effects of intravenous and intranasal ketorolac in patients undergoing mandibular fracture surgery. In this clinical trial study, Sixty-four patients with unilateral mandibular fracture were divided randomly into two groups. In group 1, 30 mg of intravenous (IV) ketorolac was injected every 8 hours and in group 2, intranasal (IN) ketorolac spray was used as a 100-µL puff in each nostril (31.5 mg) every 6 hours. After each patient regained consciousness, pain intensity was measured based on visual analogue scale for 48 hours. Finally, the total dose of the opioid analgesic agent (pethidine) and the time for the first request for an analgesic agent were recorded for each patient, and their means were compared in each group with proper statistical tests. Mean pain intensity of patients at baseline was significantly higher than that at other intervals and then, it decreased significantly (P<0.001). Furthermore, 2, 4, 6 and 8 hours after surgery, mean pain intensity in the IN group was significantly lower than that in the IV group (P<0.05). In the IN group, dose of antinociceptive medicine was slightly higher and the time to request it was shorter than the other group, but it was not statistically significant (P >0.05). Application of intranasal ketorolac spray decreased pain after mandibular fracture surgery, especially at 8-hour interval after surgery, decreasing the need for opioids.
- The Micro-Shear bond strength of different cements to commercially pure titanium(2019) Nakhaei, Mohammadreza; Fendereski, Zeinab; Alavi, Samin; Mohamadipour, HamidehThe most appropriate luting agent for attaching the prefabricated Ti-based insert of hybrid abutments to its ceramic component has not yet been determined. This study was done aimed at examining the micro-shear bond strength (?SBS) of different cements to commercially pure titanium (Cp Ti). A total of 100 milled cubes of Cp Ti was airborne-particle abraded using 250 ?m aluminum oxide particles. Specimens were then divided into 5 groups (n=20) according to the type of resin cement used: (1) Panavia F.2, (2) Rely X U200, (3) Panavia SA LUTING Plus, (4) GC Fuji I, and (5) GC FujiCEM 2. After 24h storage, half of the samples were subjected to 5000 cycles of thermal aging. Next, the bonded samples were tested in the micro-shear mode. Data (MPa) were analyzed using a two-way ANOVA and the post hoc Tukey test (?=0.05). After debonding, each sample was examined for the failure mode classification. The highest ?SBS value in the study cements was obtained for Panavia F.2 cement (P<0.001) with no significant difference with Rely X U200 (P=0.07). The ?SBS values of both GI-based cements were significantly lower than those of resin cements. Thermal aging decreased the ?SBS values of all groups (P=0.003) significantly. The mainly occurred failure mode in all groups was the adhesive feature. Resin cements demonstrated acceptable bonding to Cp Ti, yet Gl-based cements did not. From among the cements examined, Panavia F.2 can be considered as the best option for bonding to Ti.
- Influence of tooth loss on mandibular morphology : a cone-beam computed tomography study(2019) Fouda, Shaimaa-Mohamed; Gad, Mohammed-Moustafa; Tantawi, Maha El; Virtanen, Jorma I.; Sipilä, Kirsi; Raustia, AuneTooth loss adversely affects patients? health and psychosocial wellbeing. In addition, it changes mandibular morphology. Objective: To evaluate the effect of tooth loss, age, and gender on mandibular morphology. Cone-beam computed tomographic (CBCT) scans of 101 patients were examined to measure the gonial angle (GA), ramus height (RH) and condylar height (CH). Patients? age, gender, and dental status were recorded. Repeated measures analysis of variance (ANOVA) was used to assess the impact of gender, age, and tooth loss on the GA, RH and CH. The mean measurements of the GA, RH and CH were compared between dentate/edentulous patients after splitting by gender. The GA was larger in edentulous patients compared to dentate ones, in females than in males, and in older than in younger. RH on the right side was significantly longer than on the left side (P< 0.0001), and also longer in males and younger patients. CH was shorter in younger than in older patients and in dentate than in edentulous patients. Tooth loss is associated with changes in mandibular morphology and its prevention would avoid these irreversible changes.
