Esin Bozdemir

Comparison of different caries detectors for approximal caries detection

Background/purpose Detection of approximal caries may be difficult using conventional methods including visual inspection (VI) and radiography. The purpose of this in vitro research was to evaluate the efficiency of light-emitting diode (LED) and laser fluorescence (LF) devices, and radiographic and visual examination in approximal caries diagnosis. Materials and methods One hundred and fifty-six approximal regions were evaluated. All approximal regions were investigated using LED and LF tools after radiography and VI were performed. Histological evaluation of teeth was performed using stereomicroscopy. The area under the receiver operating characteristic curve and accuracy, specificity, sensitivity values calculated regarding approximal caries diagnose. Results The specificity of the bitewing examination was higher for both T1 and T2 thresholds (0.97 and 0.99, respectively), and the LF device showed better sensitivity at each threshold compared with the other devices used for caries diagnosis (0.94 at T1 and 0.79 at T2). The receiver operating characteristic curves presented that the LF device was more successful than the other techniques at T1 threshold and VI was better than the other caries detection methods at T2 threshold. The kappa values for interobserver agreements were 0.43 (LF pen), 0.33 (LED device), 0.55 (VI), and 0.75 (bitewing examination). Conclusion The ability of bitewing radiography to identify sound surfaces was better than that of the other methods. The LF device was the most sensitive tool for detecting approximal surfaces with caries, followed by the LED device.

In vivo performance of two devices for occlusal caries detection.

OBJECTIVE The aim of this in vivo study was to compare the performance of light-emitting diode (LED)- and laser fluorescence (LF)-based devices with that of visual inspection (VI) in the diagnosis of occlusal caries. METHODS A total of 156 occlusal surfaces were investigated. Each occlusal surface was assessed with LED- and LF-based devices after a VI was performed. Pit and fissure opening was applied to the occlusal surfaces in which opacity or discoloration was distinctly visible after airdrying. The inter-examiner reliability of caries examination was assessed using the weighted κ statistics. The sensitivity, specificity, and accuracy of occlusal caries diagnosis using these methods were calculated according to the appropriate thresholds. RESULTS Acceptable inter-examiner agreement was found for the LED- and LF-based devices and VI (κ=0.61, κ=0.76, and κ=0.87, respectively). Higher specificity values were achieved at a T2 threshold for the LF-based device (0.76 and 0.80) and at a T1 threshold for the LED-based readings (0.60 and 0.62) and VI (0.90 and 0.93) for both observers. With regard to VI, higher sensitivity values were found at both thresholds for the two observers in comparing the three caries detection methods (0.98 at T1 and 0.96 at T2). The accuracy values for T1 were higher than those for the T2 values, for all three caries detection methods. CONCLUSIONS Caries lesions may be detected more accurately than clinically sound areas by both caries detection devices.

Subpontic osseous hyperplasia: Three case reports and literature review

Subpontic osseous hyperplasia (SOH) is an ectopic growth of bone occurring on the edentulous ridge beneath a fixed partial denture. The aim of this article is to present three patients with SOH with long-term follow-up and to make a current overview of the literature. Presented maxillary SOH is the second case in the dental literature. Intraorally the lesions were bone-hard and painless swellings in the subpontic space. Radiographically, the maxillary case was a nodular bone growth having similar radiodensity and trabeculation to the adjacent bone with a thin radiopaque border. Mandibular cases were bony growths, which were more radiopaque than the adjacent alveolar ridge. Follow-up radiographs revealed regression in two of the cases. Clinicians should take care not to cause the possible etiologies of SOH such as functional stresses and chronic irritation by the prosthetic treatments and be aware of SOH does not usually require treatment or a biopsy.

Endodontically related lesions on panoramic radiographs in a Turkish subpopulation

Objective: The purpose of this study was to evaluate the prevalence of detectable endodontically related lesions as determined from the reports of panoramic radiographs in a Turkish subpopulation. Materials and Methods: There were 19,625 reports of panoramic radiographs that were evaluated. Four investigators assessed the radiographs and reports that had been written. For each tooth of the subjects, the following items were surveyed: presence of periapical lesion, inadequate root canal treatment, external and internal root resorption. Results: The patients who had panoramic radiography reports were between the ages of 3 and 91 years (mean age 29,43 ± 18,83 years). 10,941 (56%) were female and 8684 (44%) were male patients. Inadequate root canal treatment was recorded in 588 (3%) radiography reports and it was more frequent in mandibular molar teeth. 2287 (11.7%) of the patients had periapical lesions and it was more frequent in maxillary incisor teeth and mandibular molar teeth. External resorption was observed in 61 (0.3%) patient records, while internal root resorption was reported in 14 (0.1%) reports. 81 inadequate root-filled teeth presented a periapical lesion. A positive strong linear correlation was found between the presence of inadequate root canal treatment and a periapical lesion among the patients (r = 0.098, P = 0.000). Conclusions: The results of this study suggest that external and internal root resorption were not frequent clinical conditions. The high frequency of periapical lesions and inadequate canal treatment in molar teeth indicate the need to improve the technical quality of root fillings, especially in molar teeth.

Effect of Different Contact Materials on Approximal Caries Detection by Laser Fluorescence and Light-Emitting Diode Devices

OBJECTIVE The aim of this in vitro study was to investigate the influence of the adjacent tooth surface on pen type laser fluorescence (LFpen) and light-emitting diode (LED) device readings in detecting approximal caries lesions in permanent teeth. BACKGROUND DATA Early detection of noncavitated dental caries is important, because disease progression can be easily halted at this stage with certain applications, such as fluoride therapy, antibacterial therapy, dietary changes, or low-intensity laser irradiation. MATERIALS AND METHODS A total of 87 permanent molars with 156 approximal surfaces were assessed with LED- and LF-based devices in contact with sound tooth surfaces (the control group) as well as approximal amalgam, composite, zirconia, and full ceramic restorations. All teeth were assessed once by one trained examiner. After the LF and LED assessments, the teeth were histologically evaluated using stereomicroscopy as the gold standard. The sensitivity, specificity, accuracy, and area under the receiver operating characteristics (ROC) curve were calculated according to the appropriate thresholds (T1, sound surface or enamel caries; T2, dentin caries). RESULTS For the LFpen device, higher sensitivity and accuracy was found when the adjacent surface was sound at the T1 threshold and no significant differences were found among accuracy at the T2 threshold. For the LED-based device, no significant differences were found among sensitivities at the T1 threshold. At the T2 threshold, specificity was higher when the adjacent tooth had a zirconia restoration. CONCLUSIONS It was found that both devices could be used effectively for evaluating approximal surfaces with adjacent restored teeth, regardless of the different kinds of restorative materials.

PARANASAL SINUS PATHOSES ON CONE BEAM COMPUTED TOMOGRAPHY

Purpose: The aim of this study was to investigate paranasal sinus pathoses detected on cone-beam computed tomography (CBCT) in an adult population. Patients and Methods: Three observers retrospectively inspected 353 consecutive CBCT scans obtained in a dentomaxillofacial radiology department for paranasal sinus pathoses. Descriptive statistics and chi-square tests were used to determine the prevalence of categorical parameters. Results: The age of the patients ranged from 18 to 85 years (mean 41.27±16.76). There were 172 (48.7%) females and 181 (51.3%) males. There was a significant difference between the genders (p=0.02), with males (53.5%) having more sinus pathoses than females (46.5%). When the left and right sinuses were considered together, pathoses were most commonly seen in the maxillary sinuses (57.1%), followed by the ethmoid (53.7 %), frontal (22.6%), and sphenoid sinuses (15.8%). Mucosal thickening was the most frequently observed abnormality (51.7%), followed by hypoplasia (17.5%) and sinusitis (17.3%). Conclusion: CBCT is a preferable imaging method for evaluation of paranasal sinuses. Dentomaxillofacial radiologists should examine the whole volume of CBCT images to ensure they do not overlook paranasal sinus pathoses.

Süleyman Demirel Üniversitesi Dişhekimliği Fakültesi'ne Başvuran Hastaların Kullandığı Dişhekimliği Dışı Tedavi Yöntemleri (Ön Çalışma)

Ozet Amac:Bu arastirmanin amaci bir dishekimligi fakultesine basvuran hastalarin tedavi amaciyla basvurduklari dishekimligi disi yontemlerin ve sikliginin incelenmesidir. Materyal-Metod: Kesitsel tipteki bu arastirmada, bes is gunu icinde klinigimize basvuran 18 yas ve ustu 105 hastaya 16 soruluk bir anket uygulandi. Anket formunda hastalarin sosyodemografik ozelliklerini, kendilerini tedavi etmek amaciyla uyguladiklari yontemleri ve sikligini belirleyecek sorular bulunmaktaydi. Istatistik analizde frekans dagilimi, ki-kare ve Student t testleri kullanildi. Bulgular: Hayatinin herhangi bir doneminde ve son bir yil icinde dishekimligi disi tedavi yontemleri uygulama sikliginin, arastirma grubunun sosyodemografik ozelliklerinden (yas, cinsiyet, egitim durumu, medeni durum, sosyal guvence, gelir durumu, dis hekimine gitme sikligi) etkilenmedigi belirlendi (p>0,05). Bu uygulamalar arasinda en sik basvurulan yontemler sirasiyla, asetil salisilik asit (%18), kolonya (%17) ve tuz (%16) uygulamasi idi. Tartisma: Bu on calismada hastalarin cesitli dishekimligi disi uygulamalara basvurduklari belirlenmistir. Sonuc olarak dishekimligi disi uygulamalarin oral mukozada yaptigi degisikliklerin, dental tedavilere etkilerinin ve ilaclarla etkilesimlerinin bilinmesi gereklidir. Anamnez alirken hastalara bu tur uygulamalara basvurup basvurmadiklarinin sorgulanmasi gereklidir. Anahtar kelimeler: Dishekimligi disi tedavi, alternatif tedavi, tedavi yontemi, asetil salisilik asit, tuz

Multiple calcifying hyperplastic dental follicles: A case report

This report describes a 31-year-old female patient with six impacted teeth. The crowns of the impacted teeth were surrounded with cyst-like lesions with a mixed internal structure and well-defined cortical borders. Microscopic examination of the specimen obtained from the follicle of the left mandibular third molar tooth revealed loose to moderately dense collagenous connective tissue with abundant calcified material and sparse epithelial islands. A diagnosis of multiple calcifying hyperplastic dental follicles was made.