Odontomas are benign odontogenic tumors formed from epithelial and mesenchymal cells. They are mostly associated with disorders of tooth eruption, causing impaction and/or delayed tooth eruption, and ...are an accidental finding on routine radiological examination. The aim of this paper is to present current findings in the etiology and treatment of odontomas, as well as the clinical and radiographic features, describing a case that is rarely found in the literature. A case of multiple complex odontoma in the mandible of an 11-year-old boy is presented, causing impaction of the first permanent right molar, 46. The treatment consisted of surgical enucleation of the multiple complex odontoma with preservation of the impacted tooth, monitoring clinically and radiologically its spontaneous eruption followed by final orthodontic alignment. Odontomas are not an everyday part of clinical practice and given that they are most commonly associated with permanent tooth impaction, it is extremely important to have knowledge of their clinical and radiological features. Early diagnostics and appropriate treatment result in better diagnosis, thus increasing the possibility of preserving the impacted teeth. Key words: Odontogenic tumors; Odontoma; Tooth, impacted; Pediatric dentistry
Analyze the factors associated with the existence of persistent periapical lesions by histopathological methods.
49 endodontically and prosthetically rehabilitated teeth with inaccessible persistent ...processes were selected. Periapical tissue samples of single and double-rooted teeth with the root tip were taken during apicectomy and placed in labeled sterile glass vials with 10% formalin. After preparation, microscopic analysis was used to reveal microorganisms in the periapical area of the teeth and in the final part of the root canal. The findings, type and arrangement of inflammatory cells and dense connective and epithelial tissue were described. If possible, the lesions were characterized as true or pocket cysts. Non-standard pathohistological features were specifically described.
Fungi and Gram-positive cocci were found in 12% of the samples. Granulomatous processes were identified in 66%, granulomas with epithelial strips in 22%, and cysts in 6% of samples. Foreign material was present in 14%, and scarring was found in 2% of the samples.
Periapical granulomas and cysts are most common periapical lesions, and pocket cysts have a very low incidence in treated cases. The cocci and fungi found in the periapical granuloma confirm the existence of an extra-root infection. Foreign material found in the periapical tissue causes foreign body reaction, so more attention should be paid to the depth to which the root canal is treated. Periapical scar occurs after conservative endodontic therapy and it manifests as x-ray translucence impossible to distinguish from unsuccessful endodontic treatment.
Abstract
Objective
The aim of this study was to test knowledge, attitudes, and behavior of the students from the Bjelovar University of Applied Sciences in relation to oral health, and to determine ...the respectable differences between students of nursing and technical study programs.
Materials and Methods
Students were randomly selected to represent a convenient sample. A total of 140 students from nursing and technical studies were interviewed by using the World health organization Oral Health Questionnaire, adapted to fit the study purposes.
Statistical Analysis
Descriptive statistics were used to determine frequency distribution and percentages for all variables. Pearson’s Chi-square test was used to compare the proportions. A
p
-value less than 0.05 was considered to be statistically significant.
Results
The distribution of participants regarding gender was significantly different between the study programs (
p
= 0.000). Significant difference was also observed in their perceived socioeconomic status (
p
= 0.001). A significant difference was found between the study programs regarding the knowledge whether bad teeth could impair general health (
p
= 0.001), could tooth decay and periodontal disease may be prevented (
p
= 0.002), as well as the importance of regular dental check-ups for prevention of tooth decay (
p
= 0.028). There were significant differences regarding dietary habits and alcohol consumption in the past 30 days between the observed study programs (
p
= 0.000) while no significant differences were found regarding tobacco and tobacco product use (
p
= 0.170).
Conclusion
Results obtained and presented in this paper show better knowledge and more favorable habits and behaviors among the students from nursing study program compared with the technical ones. Still all students’ habits should be changed to improve oral health. To change attitudes and influence habits, effective oral health promotion programs are needed; not only in colleges, but also in primary and secondary schools.
Purpose of this study was to compare the effects of combined therapy using nonsteroid anti-inflammatory analgetics and corticosteroids, and the effects of the mono-therapy with same drugs for ...post-operative pain after surgical removal of the impacted mandibular third molar. The study was completed at the Department of Oral Surgery and at the Department of Dental Medicine of the Public Institute Health Center Zenica in Zenica. The research included 60 patients divided into 3 groups using random selection, including both sexes. Age range was between 18 and 45 years. All participants came without any pain or other inflammatory symptoms at the time of oral surgical intervention. Two medicaments were prescribed after the impacted tooth removal: 15 mg of nonsteroid anti-inflammatory analgesic drug (Meloxicam, Bosnalijek, BiH) and 32 mg Methylprednisolone (corticosteroid, Bosnalijek, BiH). Both medicaments were applied per os, according to schedule determined by the research protocol. The level of post-surgical pain was evaluated by the 1-10 visual analog scale (VAS). One way ANOVA was made with Tuckey post-hoc tests. Statistically significant difference (p < 0.05) was found between the group treated with mono therapy and the group treated with combined therapy. Application of monotherapy using only corticosteroids or only nonsteroid anti-inflammatory pain-killers was less effective compared to the combined therapy with both medicaments after surgical removal of the impacted mandibular third molar.
Literature data indicates that measurement of certain salivary constituents might serve as a useful diagnostic/prognostic tool in the patients with oral squamous cell carcinoma (OSCC). In 24 patients ...with OSCC (60 +/- 2.5 yrs) and in 24 controls (24 +/- 3.7 yrs) we have determined levels of salivary magnesium, calcium, copper, chloride, phosphate, potassium, sodium, total proteins and amylase. Sodium, potassium and chloride were determined by indirect potentiometry whereas copper, magnesium and phosphate were determined by atomic absorption spectrophotometry. Total proteins were determined by pyrogalol colorimetric method. Amylase levels were determined by continued colorimetric method. Statistical analysis was performed by use of chi2 test and Spearman's correlation test. The results of this study indicate that the concentrations of sodium and chloride were significantly elevated in patients with OSCC when compared to the controls. However, level of total protein was significantly decreased when compared to the healthy controls. Furthermore, there was a negative correlation between alcohol consumption and total protein concentration in patients with oral carcinoma. We might conclude that in patients with OSCC increased salivary sodium and chloride might reflect their overall dehydration status due to alcohol consumption rather than consequence of OSCC itself.
It has been suggested that certain viruses such as human papillomaviruses (HPV) and Epstein-Barr virus (EBV) might have a role in oral squamous cell carcinoma (OSCC). However, results of the ...published studies are controversial and are dependent on the geographic distribution and methods of sampling and sample analysis. The aim of this study was to determine the prevalence of HPV 16 and EBV in OSCC patients. In 24 patients with OSCC (mean age 59.6 +/- 8.8) and 30 controls (mean age 49.1 +/- 8.3), 5 mL of blood was collected to determine the prevalence of EBV by serologic methods. In addition, swabs were obtained to analyze the presence of HPV 16 and EBV by use of polymerase chain reaction. Statistical analysis was performed by use of Mann-Whitney test, chi2-test and Spearman correlation test. The results of this study showed that there were no significant differences between OSCC patients and control subjects according to the presence of EBV or HPV 16. Therefore, it can be concluded that the role of the aforementioned viruses is less likely in our population of OSCC patients.
The aim of this study was to investigate the stress distribution in a 3-D model of two-rooted tooth (first maxillary premolar) under two different occlusal force vectors by using finite element ...analysis. In the first model overall force of 200 N was divided into three vectors (cusp to fossa occlusion), and in the second model overall force was divided into 4 vectors (cusp to fossa and cusp to marginal ridge occlusion). The greatest compressive stress was found at the dentino- enamel junction in the cervical area of the both models (about -200 MPa). The greatest tensile stress was found at the vestibular aspect of buccal cusp in second model (about +3 MPa) and in the central fossa of the both models (about +28 MPa). Results indicate that in the both types of occlusal loadings the stress distribution was mainly compression and compressive forces were predominant over tensile stresses. In the second model with 4 vectors, stresses generated in the tooth structure were higher compared to the stresses generated in the first model with 3 vectors.
Odontomi su dobroćudni odontogeni tumori nastali od epitelne i mezenhimne osnove. Najčešće su povezani s poremećajima
u nicanju zuba, uzrokujući impakciju i/ili zakašnjelo nicanje zuba te su slučajan ...nalaz prilikom rutinskih radioloških
snimaka. Cilj ovoga rada je prikazati dosadašnja saznanja u etiologiji i liječenju odontoma, kao i kliničke i radiografske značajke,
prikazujući slučaj koji se rijetko može naći u literaturi. Prikazan je slučaj višestruko složenog odontoma u mandibuli
11-godišnjaka, što uzrokuje impakciju prvog trajnog desnog kutnjaka, 46. Liječenje se sastojalo od kirurške enukleacije višestruko
složenog odontoma uz očuvanje zahvaćenog zuba. Nakon operativnog zahvata klinički i radiološki se pratilo spontano
nicanje impaktiranog zuba do konačnog ortodontskog ispravljanja položaja zuba. Odontomi nisu svakodnevni dio kliničke
prakse, a s obzirom na to da su najčešće povezani s impakcijom trajnih zuba veoma je važno poznavati njihove kliničke i
radiološke
značajke. Rano dijagnosticiranje i primjereno liječenje rezultiraju boljom dijagnozom, povećavajući tako mogućnost
očuvanja impaktiranih zuba.
Purpose of this study was to compare the effects of combined therapy using nonsteroid anti-inflammatory analgetics
and corticosteroids, and the effects of the mono-therapy with same drugs for ...post-operative pain after surgical removal of
the impacted mandibular third molar. The study was completed at the Department of Oral Surgery and at the Department
of Dental Medicine of the Public Institute Health Center Zenica in Zenica. The research included 60 patients divided into
3 groups using random selection, including both sexes. Age range was between 18 and 45 years. All participants came
without any pain or other inflammatory symptoms at the time of oral surgical intervention. Two medicaments were prescribed
after the impacted tooth removal: 15 mg of nonsteroid anti-inflammatory analgesic drug (Meloxicam, Bosnalijek,
BiH) and 32 mg Methylprednisolone (corticosteroid, Bosnalijek, BiH). Both medicaments were applied per os, according
to schedule determined by the research protocol. The level of post-surgical pain was evaluated by the 1–10 visual
analog scale (VAS). One way ANOVA was made with Tuckey post-hoc tests. Statistically significant difference (p<0.05)
was found between the group treated with mono therapy and the group treated with combined therapy. Application of
mono therapy using only corticosteroids or only nonsteroid anti-inflammatory pain-killers was less effective compared to
the combined therapy with both medicaments after surgical removal of the impacted mandibular third molar.
Čini se kako određeni virusi poput humanih papilomavirusa (HPV) i Epstein-Barrova virusa (EBV) mogu imati ulogu u nastanku karcinoma pločastih stanica u usnoj šupljini (OPCK). Ipak, rezultati ...objavljenih istraživanja na tu temu su kontroverzni i ovise o geografskoj distribuciji i metodama uzimanja uzoraka odnosno raščlambi uzoraka. Cilj ovoga istraživanja je bio odrediti učestalost HPV 16 i EBV u osoba s OPCK. U 24 osobe s OPCK (srednje dobi 59,6±8,8) i u 30 kontrolnih ispitanika (srednje dobi 49,1±8,3) je uzeto 5 mL krvi kako bi se odredio EBV serološkim metodama. Uz to su uzeti i brisevi kako bi se odredila prisutnost HPV 16 i EBV uz pomoć reakcije lančane polimeraze. Statistička analiza je napravljena pomoću Mann-Whitneyeva testa, χ2-testa i Spearmanova korelacijskog testa. Rezultati ovoga istraživanja pokazuju kako nije bilo znakovitih razlika između osoba s OPCK i kontrolnih ispitanika s obzirom na prisutnost HPV 16 ili EBV. Može se zaključiti kako ovi virusi u našoj populaciji oboljelih od OPCK vjerojatno nemaju veliku ulogu.
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