Hazal Özcan
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
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Research Subjects
Hazal Özcan has a total of 17 co-authors. Here are the top co-authors by number of shared publications:
- Figen Seymen
Altinbas Universitesi
5 shared publications - Sabiha Ceren İlIsulu
Department of Pediatric Dentistry, Faculty of Dentistry, İstanbul University-Cerrahpaşa, İstanbul, Türkiye
4 shared publications - Ceren Kaplan
Department of Pediatric Dentistry, Faculty of Dentistry Istanbul Altınbaş University Istanbul Turkey
3 shared publications - Mine Koruyucu
Department of Pediatric Dentistry, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
2 shared publications - Sinem Birant
Faculty of Dentistry, Department of Pediatric Dentistry, Istanbul University-Cerrahpasa, Istanbul, Turkey
2 shared publications - Abdulkadir Burak Cankaya
ISTANBUL UNIVERSITY, FACULTY OF DENTISTRY, DEPARTMENT OF CLINICAL SCIENCES, DEPARTMENT OF ORAL, DENTAL AND MAXILLOFACIAL SURGERY
1 shared publication
Latest Publications
- 30 August 2026
- Published by Ankara University in European Annals of Dental Sciences
- Vol. 53 (2) , 59-65
Assesment of Dental Caries Based on CAST, ICDAS II and Nyvad’s Criteria in Primary Molars
Purpose: This study aims to test and compare three caries measurement methods, the Caries Assessment Spectrum and Treatment (CAST), the International Caries Detection and Assessment System (ICDAS), and the Nyvad’s criteria, to assess the degree and severity of dental caries in primary molars.Materials & Methods: A descriptive cross-sectional study was conducted among 200 children aged 3-5 years to evaluate primary molars based on CAST, ICDAS II and Nyvad’s criteria by two calibrated dentists. Intra‐ and inter‐examiner reliability was established. Statistical significance was considered at p
- 30 August 2026
- Published by Ankara University in European Annals of Dental Sciences
- Vol. 53 (2) , 59-65
Assesment of Dental Caries Based on CAST, ICDAS II and Nyvad’s Criteria in Primary Molars
Purpose: This study aims to test and compare three caries measurement methods, the Caries Assessment Spectrum and Treatment (CAST), the International Caries Detection and Assessment System (ICDAS), and the Nyvad’s criteria, to assess the degree and severity of dental caries in primary molars.Materials & Methods: A descriptive cross-sectional study was conducted among 200 children aged 3-5 years to evaluate primary molars based on CAST, ICDAS II and Nyvad’s criteria by two calibrated dentists. Intra‐ and inter‐examiner reliability was established. Statistical significance was considered at p
- Open Access
- 30 July 2026
- Published by AVES YAYINCILIK A.Ş. in Essentials of Dentistry
- Vol. 5
The Effects of Antibiotic Syrups on the Color Stability and Surface Roughness of Various Restorative Materials Used in Pediatric Dentistry
Background: This study aimed to evaluate the effects of commonly prescribed pediatric antibiotic syrups on the color stability and surface roughness of restorative materials used in pediatric dentistry. Methods: Disc-shaped specimens (5 × 2 mm) were prepared from composite resin (G-ænial), compomer (Dyract XP), and glass ionomer cement (Equia Forte Fil). Initial color measurements were recorded using a spectrophotometer at 3 different points, with each measurement repeated 3 times. Surface roughness (Ra) values were obtained from 3 distinct angles under standardized conditions. The specimens were divided into 2 subgroups (n = 5) and immersed in Klamoks 400 mg suspension and Macrol 250 mg suspension for 2 minutes every 12 hours over 1 week. A control group was maintained in distilled water. Color change (ΔE) and surface roughness measurements were reassessed at the end of the experimental period. Statistical analyses were performed using IBM SPSS 22 (P < .05). Results: The highest color change (ΔE: 5.35 ± 0.97) was observed in the Klamoks-composite group, while the lowest was in the Macrol-compomer group (ΔE: 0.38 ± 0.12). Surface roughness increased most significantly in Klamoks-GIC (0.91 ± 0.20), while Klamoks-composite exhibited the lowest Ra values (0.51 ± 0.19) (P < .05). Conclusion: Pediatric antibiotic syrups significantly impact the color stability and surface roughness of restorative materials due to their low pH, high viscosity, and prolonged exposure. These findings suggest that material selection in pediatric restorative treatments should consider potential interactions with pediatric medications to enhance restoration longevity.
- 30 July 2026
- Published by AVES YAYINCILIK A.Ş. in Essentials of Dentistry
- Vol. 5
Open AccessThe Effects of Antibiotic Syrups on the Color Stability and Surface Roughness of Various Restorative Materials Used in Pediatric Dentistry
Background: This study aimed to evaluate the effects of commonly prescribed pediatric antibiotic syrups on the color stability and surface roughness of restorative materials used in pediatric dentistry. Methods: Disc-shaped specimens (5 × 2 mm) were prepared from composite resin (G-ænial), compomer (Dyract XP), and glass ionomer cement (Equia Forte Fil). Initial color measurements were recorded using a spectrophotometer at 3 different points, with each measurement repeated 3 times. Surface roughness (Ra) values were obtained from 3 distinct angles under standardized conditions. The specimens were divided into 2 subgroups (n = 5) and immersed in Klamoks 400 mg suspension and Macrol 250 mg suspension for 2 minutes every 12 hours over 1 week. A control group was maintained in distilled water. Color change (ΔE) and surface roughness measurements were reassessed at the end of the experimental period. Statistical analyses were performed using IBM SPSS 22 (P < .05). Results: The highest color change (ΔE: 5.35 ± 0.97) was observed in the Klamoks-composite group, while the lowest was in the Macrol-compomer group (ΔE: 0.38 ± 0.12). Surface roughness increased most significantly in Klamoks-GIC (0.91 ± 0.20), while Klamoks-composite exhibited the lowest Ra values (0.51 ± 0.19) (P < .05). Conclusion: Pediatric antibiotic syrups significantly impact the color stability and surface roughness of restorative materials due to their low pH, high viscosity, and prolonged exposure. These findings suggest that material selection in pediatric restorative treatments should consider potential interactions with pediatric medications to enhance restoration longevity.
- 27 July 2026
- Published by Istanbul University in Istanbul University Journal of Health Sciences Research
- Vol. 9 (2) , 85-90
Evaluation of ChatGPT, Gemini and DeepSeek Models' Performance on Pedodontics Questions from the Turkish Dental Specialty Exam
Objective: This study aimed to evaluate and compare the accuracy of three artificial intelligence models (ChatGPT, DeepSeek, and Gemini) on paediatric dentistry questions from the Turkish Dental Specialty Examination (DUS).Materials and Methods: A total of 127 pedodontics questions from DUS exams conducted between 2012 and 2021 were presented to each AI model. The responses were compared with official answer keys and classified as correct or incorrect. Annual accuracy rates were calculated for each model. The Kruskal–Wallis test was used to assess statistical differences in accuracy among the models. Additionally, questions were categorised according to Bloom’s taxonomy to evaluate performance across cognitive levels.Results: The overall accuracy rates were 70% for ChatGPT, 79.5% for Gemini, and 81.1% for DeepSeek. Although performance varied across years, these differences were not statistically significant (p > 0.05). Similarly, no significant differences were observed in model accuracy across Bloom’s taxonomy levels.Conclusion: The findings indicate that current AI models demonstrate only moderate accuracy in solving multiple-choice exam questions in pedodontics. Their direct applicability in dental specialty education remains limited, and they should be used cautiously as supplemental tools rather than primary educational resources.
- 27 July 2026
- Published by Istanbul University in Istanbul University Journal of Health Sciences Research
- Vol. 9 (2) , 85-90
Evaluation of ChatGPT, Gemini and DeepSeek Models' Performance on Pedodontics Questions from the Turkish Dental Specialty Exam
Objective: This study aimed to evaluate and compare the accuracy of three artificial intelligence models (ChatGPT, DeepSeek, and Gemini) on paediatric dentistry questions from the Turkish Dental Specialty Examination (DUS).Materials and Methods: A total of 127 pedodontics questions from DUS exams conducted between 2012 and 2021 were presented to each AI model. The responses were compared with official answer keys and classified as correct or incorrect. Annual accuracy rates were calculated for each model. The Kruskal–Wallis test was used to assess statistical differences in accuracy among the models. Additionally, questions were categorised according to Bloom’s taxonomy to evaluate performance across cognitive levels.Results: The overall accuracy rates were 70% for ChatGPT, 79.5% for Gemini, and 81.1% for DeepSeek. Although performance varied across years, these differences were not statistically significant (p > 0.05). Similarly, no significant differences were observed in model accuracy across Bloom’s taxonomy levels.Conclusion: The findings indicate that current AI models demonstrate only moderate accuracy in solving multiple-choice exam questions in pedodontics. Their direct applicability in dental specialty education remains limited, and they should be used cautiously as supplemental tools rather than primary educational resources.
- Open Access
- 19 June 2026
- Published by Springer Nature in Head & Face Medicine
- Vol. 22 (1)
Transepithelial electrical resistance and cellular viability responses to teething gels: an in vitro study
This study aimed to evaluate the in vitro effects of commercially available teething gels with different formulations on epithelial barrier integrity and cellular viability. Six commercially available teething gels were tested at concentrations of 0.1%, 20%, 50%, and 80%. Cellular viability was assessed using the MTT assay in human gingival mesenchymal stem cells after 72 h of exposure. Epithelial barrier integrity was evaluated by measuring transepithelial electrical resistance (TEER) in HaCaT keratinocyte cells cultured on transwell inserts at 24, 48, and 72 h. Statistical analyses were performed using IBM SPSS Statistics 27, applying mixed-design and two-way ANOVA with appropriate post hoc tests, with significance set at p < 0.05. TEER values differed significantly according to gel type, concentration, and exposure time (p < 0.05). At 0.1%, significant intergroup differences were observed at 24 h (p = 0.001) and 72 h (p = 0.017), with Dentinox showing significantly lower TEER values than Gengigel, Aftamed, Buccotherm, and Jack N'Jill. At 20%, 50%, and 80% concentrations, Dentinox consistently exhibited reduced TEER levels at 24-72 h (p = 0.001), whereas Gengigel showed higher TEER values mainly at 24 h (20%) and 72 h (50%), and Buccotherm at 48 h across higher concentrations. MTT analysis revealed significant gel- and concentration-dependent differences at 20%, 50%, and 80% (p = 0.001). Jack N'Jill exhibited higher cell viability at 20%, while both Jack N'Jill and Buccotherm showed higher viability at 50% and 80%. Teething gels exert formulation, concentration, and time-dependent effects on epithelial barrier integrity and cellular viability, emphasizing the need for careful evaluation of products intended for infant use. This study demonstrates that teething gels with different formulations and concentrations can differentially affect epithelial barrier integrity and cellular viability. These findings highlight the clinical importance of carefully evaluating teething gel composition and concentration, particularly for products intended for use in infants and young children.
- 19 June 2026
- Published by Springer Nature in Head & Face Medicine
- Vol. 22 (1)
Open AccessTransepithelial electrical resistance and cellular viability responses to teething gels: an in vitro study
This study aimed to evaluate the in vitro effects of commercially available teething gels with different formulations on epithelial barrier integrity and cellular viability. Six commercially available teething gels were tested at concentrations of 0.1%, 20%, 50%, and 80%. Cellular viability was assessed using the MTT assay in human gingival mesenchymal stem cells after 72 h of exposure. Epithelial barrier integrity was evaluated by measuring transepithelial electrical resistance (TEER) in HaCaT keratinocyte cells cultured on transwell inserts at 24, 48, and 72 h. Statistical analyses were performed using IBM SPSS Statistics 27, applying mixed-design and two-way ANOVA with appropriate post hoc tests, with significance set at p < 0.05. TEER values differed significantly according to gel type, concentration, and exposure time (p < 0.05). At 0.1%, significant intergroup differences were observed at 24 h (p = 0.001) and 72 h (p = 0.017), with Dentinox showing significantly lower TEER values than Gengigel, Aftamed, Buccotherm, and Jack N'Jill. At 20%, 50%, and 80% concentrations, Dentinox consistently exhibited reduced TEER levels at 24-72 h (p = 0.001), whereas Gengigel showed higher TEER values mainly at 24 h (20%) and 72 h (50%), and Buccotherm at 48 h across higher concentrations. MTT analysis revealed significant gel- and concentration-dependent differences at 20%, 50%, and 80% (p = 0.001). Jack N'Jill exhibited higher cell viability at 20%, while both Jack N'Jill and Buccotherm showed higher viability at 50% and 80%. Teething gels exert formulation, concentration, and time-dependent effects on epithelial barrier integrity and cellular viability, emphasizing the need for careful evaluation of products intended for infant use. This study demonstrates that teething gels with different formulations and concentrations can differentially affect epithelial barrier integrity and cellular viability. These findings highlight the clinical importance of carefully evaluating teething gel composition and concentration, particularly for products intended for use in infants and young children.
- 31 August 2021
- Published by Selcuk Dental Journal in Selcuk Dental Journal
- Vol. 8 (2) , 372-378
DO PARENTS AND CHILDREN PERCEIVE MOLAR-INCISOR HYPOMINERALIZATION AS AN ORAL HEALTH PROBLEM ?
Amaç: Bu çalışma MIH gözlenen çocuklarda ve ebeveynlerinde; dişlerinin sağlık durumu, tedavi gereksinimi, dişlerin görünüşünden dolayı oluşan memnuniyetsizlik, endişe gibi etkilerinin belirlenerek hayat kalitelerinin gözlenmesi, MIH’ın fiziksel ve psikolojik etkilerinin ebeveyn ve çocuklar üzerinde yarattığı algılardaki farklılıkların tespit edilmesi amaçlanmıştır. Gereç ve Yöntem: Bu araştırma, dişlerinde MIH saptanan çocuklar ve bu çocukların ebeveynleri ile gerçekleştirilen bir anket çalışmasıdır. Bireylerden ve ailelerden bilgilendirilmiş onam formu alındıktan sonra, araştırmaya katılmayı kabul eden bireylere MIH’a karşı yaklaşımı ve MIH’ın bir ağız sağlığı sorunu olarak algılanıp algılanmadığını ölçen anket soruları yöneltilmiş ve eksiksiz bir şekilde anketleri cevaplamaları sağlanmıştır. Çocuklar kendi kararlarını verebilecek yeterlilikte olmadıkları için ebeveynlerinin de bu konu hakkında görüşleri ve aralarındaki görüş farklılıkları istatistiksel olarak spearman korelasyon testi, Mann Whitney U testi, Ki kare ve Fisher exact testi kullanılarak analiz edilmiştir. Bulgular: Anket skorları karşılaştırıldığında MIH’ın ebeveynler ve çocuklar arasında farklı oranlarda bir ağız sağlığı sorunu olarak algılandığı görülmüştür. Ebeveyn skor ortalaması 22,63, çocuk skor ortalaması 20,85 (p=0,026) (p<0,05). Bu algı farkının, hastalık ancak yüksek şiddetli aşamaya geldiğinde ortaya çıktığı belirlenmiştir. Çocuklar ile ebeveynler arasında algı farkının ortaya çıkmasının altında yatan sebepler ise fiziksel etkenler olarak belirlenmiştir (r=0,446; p<0,05). Psikolojik skor ortalaması ebeveynlerde 11,77, çocuklarda 10.78 olarak saptanmıştır. Sonuç: MIH görülen çocukların ebeveynleri, dişlerin görünüşü hakkında çocuklarına oranla daha üzgün ve daha endişeli hissetmektedir. Buna paralel olarak aileler çocuklarından daha fazla oranda tedavi gerektiği düşüncesindedirler.
- 31 August 2021
- Published by Selcuk Dental Journal in Selcuk Dental Journal
- Vol. 8 (2) , 372-378
DO PARENTS AND CHILDREN PERCEIVE MOLAR-INCISOR HYPOMINERALIZATION AS AN ORAL HEALTH PROBLEM ?
Amaç: Bu çalışma MIH gözlenen çocuklarda ve ebeveynlerinde; dişlerinin sağlık durumu, tedavi gereksinimi, dişlerin görünüşünden dolayı oluşan memnuniyetsizlik, endişe gibi etkilerinin belirlenerek hayat kalitelerinin gözlenmesi, MIH’ın fiziksel ve psikolojik etkilerinin ebeveyn ve çocuklar üzerinde yarattığı algılardaki farklılıkların tespit edilmesi amaçlanmıştır. Gereç ve Yöntem: Bu araştırma, dişlerinde MIH saptanan çocuklar ve bu çocukların ebeveynleri ile gerçekleştirilen bir anket çalışmasıdır. Bireylerden ve ailelerden bilgilendirilmiş onam formu alındıktan sonra, araştırmaya katılmayı kabul eden bireylere MIH’a karşı yaklaşımı ve MIH’ın bir ağız sağlığı sorunu olarak algılanıp algılanmadığını ölçen anket soruları yöneltilmiş ve eksiksiz bir şekilde anketleri cevaplamaları sağlanmıştır. Çocuklar kendi kararlarını verebilecek yeterlilikte olmadıkları için ebeveynlerinin de bu konu hakkında görüşleri ve aralarındaki görüş farklılıkları istatistiksel olarak spearman korelasyon testi, Mann Whitney U testi, Ki kare ve Fisher exact testi kullanılarak analiz edilmiştir. Bulgular: Anket skorları karşılaştırıldığında MIH’ın ebeveynler ve çocuklar arasında farklı oranlarda bir ağız sağlığı sorunu olarak algılandığı görülmüştür. Ebeveyn skor ortalaması 22,63, çocuk skor ortalaması 20,85 (p=0,026) (p<0,05). Bu algı farkının, hastalık ancak yüksek şiddetli aşamaya geldiğinde ortaya çıktığı belirlenmiştir. Çocuklar ile ebeveynler arasında algı farkının ortaya çıkmasının altında yatan sebepler ise fiziksel etkenler olarak belirlenmiştir (r=0,446; p<0,05). Psikolojik skor ortalaması ebeveynlerde 11,77, çocuklarda 10.78 olarak saptanmıştır. Sonuç: MIH görülen çocukların ebeveynleri, dişlerin görünüşü hakkında çocuklarına oranla daha üzgün ve daha endişeli hissetmektedir. Buna paralel olarak aileler çocuklarından daha fazla oranda tedavi gerektiği düşüncesindedirler.
- 1 August 2020
- Published by Selcuk Dental Journal in Selcuk Dental Journal
- Vol. 7 (2) , 185-191
ÇOCUKLARIN BOYU VE SÜT DİŞLERİNİN KURON BOYUTLARI ARASINDAKİ İLİŞKİ
Amaç:Diş gelişimi, çocuklarda büyüme ve gelişmenin önemli bir göstergesidir. Büyüme sürecinde boy ve kilo artışı ile diş boyutlarının artışı birbirlerine paralel seyreden parametrelerdir. Bu çalışmanın amacı; süt dişlerinin kuron boyu ve meziodistal (MD) genişlikleri ile çocuğun boyu, kilosu ve vücut kitle indeksi (VKİ) arasındaki ilişkinin belirlenmesidir. Gereç ve Yöntemler:Çalışmaya; İstanbul Üniversitesi Diş Hekimliği Fakültesi Pedodonti Anabilim Dalı kliniğine başvurmuş olan 3-6 yaş grubu 68 çocuk (34 kız, 34 erkek) dahil edilmiştir. Çocukların alt-üst çenesinden ölçü alınarak elde edilen alçı model üzerinden dijital bir kumpas yardımıyla dişlerin klinik kuron boyu ve meziodistal genişlik uzunlukları ile çocukların kilo, boy ve yaş değerleri kaydedilmiştir. Kaydedilen bu değerler arasındaki ilişki istatiksel olarak değerlendirilmiştir.Bulgular:Çalışmaya katılan 68 çocuğun 25’i (%36,8) 3-4 yaş grubunda iken 22’si (%32,4) 5 yaş grubuna, 21’i ise (%30,9) 6 yaş grubuna dahildir. Tüm yaş gruplarında 5. ve 7. bölgedeki dişlerin kuron boyu ortalamaları arasında ve meziodistal genişliği arasında anlamlı bir fark bulunmuştur (p=0,001). Gruplar arası karşılaştırmada erkeklerde #53 numaralı dişin kuron boyu için istatistiksel olarak anlamlılık saptanmıştır (p=0,019). Değerlendirmeye alınan tüm dişlerin kuron boyu ve MD genişliği ile VKİ değişkeni ile karşılaştırılmasında anlamlı bir ilişki bulunamamıştır (p>0,05).Sonuçlar:Bu çalışmada bireyin boyu ile dişin meziodistal genişliğine göre bireyin boyu ile kuron boyu arasında daha kuvvetli korelasyon olduğu belirlenmiştir. Bunun sonucunda süt dişlerinin kuron boyu ve meziodistal genişliğinin, çocukların muhtemel boylarını tahmin etmede kullanılması ve vücut ölçüleri arasında ilişki kurulmasının değerlendirilebileceği düşünülmektedir.Anahtar Kelimeler:kuron boyu, meziodistal genişlik, vücut kitle indeksi
- 1 August 2020
- Published by Selcuk Dental Journal in Selcuk Dental Journal
- Vol. 7 (2) , 185-191
ÇOCUKLARIN BOYU VE SÜT DİŞLERİNİN KURON BOYUTLARI ARASINDAKİ İLİŞKİ
Amaç:Diş gelişimi, çocuklarda büyüme ve gelişmenin önemli bir göstergesidir. Büyüme sürecinde boy ve kilo artışı ile diş boyutlarının artışı birbirlerine paralel seyreden parametrelerdir. Bu çalışmanın amacı; süt dişlerinin kuron boyu ve meziodistal (MD) genişlikleri ile çocuğun boyu, kilosu ve vücut kitle indeksi (VKİ) arasındaki ilişkinin belirlenmesidir. Gereç ve Yöntemler:Çalışmaya; İstanbul Üniversitesi Diş Hekimliği Fakültesi Pedodonti Anabilim Dalı kliniğine başvurmuş olan 3-6 yaş grubu 68 çocuk (34 kız, 34 erkek) dahil edilmiştir. Çocukların alt-üst çenesinden ölçü alınarak elde edilen alçı model üzerinden dijital bir kumpas yardımıyla dişlerin klinik kuron boyu ve meziodistal genişlik uzunlukları ile çocukların kilo, boy ve yaş değerleri kaydedilmiştir. Kaydedilen bu değerler arasındaki ilişki istatiksel olarak değerlendirilmiştir.Bulgular:Çalışmaya katılan 68 çocuğun 25’i (%36,8) 3-4 yaş grubunda iken 22’si (%32,4) 5 yaş grubuna, 21’i ise (%30,9) 6 yaş grubuna dahildir. Tüm yaş gruplarında 5. ve 7. bölgedeki dişlerin kuron boyu ortalamaları arasında ve meziodistal genişliği arasında anlamlı bir fark bulunmuştur (p=0,001). Gruplar arası karşılaştırmada erkeklerde #53 numaralı dişin kuron boyu için istatistiksel olarak anlamlılık saptanmıştır (p=0,019). Değerlendirmeye alınan tüm dişlerin kuron boyu ve MD genişliği ile VKİ değişkeni ile karşılaştırılmasında anlamlı bir ilişki bulunamamıştır (p>0,05).Sonuçlar:Bu çalışmada bireyin boyu ile dişin meziodistal genişliğine göre bireyin boyu ile kuron boyu arasında daha kuvvetli korelasyon olduğu belirlenmiştir. Bunun sonucunda süt dişlerinin kuron boyu ve meziodistal genişliğinin, çocukların muhtemel boylarını tahmin etmede kullanılması ve vücut ölçüleri arasında ilişki kurulmasının değerlendirilebileceği düşünülmektedir.Anahtar Kelimeler:kuron boyu, meziodistal genişlik, vücut kitle indeksi
- Open Access
- 26 June 2019
- Published by University Library System, University of Pittsburgh in Dentistry 3000
- Vol. 7 (1) , 7-12
Investigation of surface topography of different root-end filling materials: An in vitro study
Aim: Although there are many materials that can be used for retrograde filling in surgical endodontics, none of them can be regarded as an ideal material yet. The purpose of this study was to compare the surface topography of three different root-end filling materials.Methods: 36 extracted single rooted human incisor teeth were cleaned and decoronated to standardized 10 mm root lengths. The root segments were prepared and 2 mm apical resection were performed. The samples were randomly separeted to three groups (Group A: Ca(OH)2, Group B: MTA Angelus, Group C: ProRoot MTA), each comprised of 12 roots. Materials were placed as 2 mm apical barriers and obturated with guttapercha and AH-Plus sealer. Each group dimidiated two subgroups (A1,A2,B1,B2,C1,C2). Groups A1,B1,C1 were stored in normal saline (NS), groups A2,B2,C2 were stored in neutral phosphate buffer saline (NPBS) solution and samples were incubated at 370C for 2 weeks. Stereomicroscope (32X) was used to photograph the root-end filling.Results: All specimens demonstrated white crystals formation and sediment over the root-end filling materials and on the superficial border of the root-end cavities’ wall as a white plague. A2,B2,C2 samples have more crystal sediment on root-end fillings than samples A1,B1,C1. Dissolution and corrosion were observed in groups A1, A2.Conclusions: The results of this study revealed that calcium hydroxide is more resorbable than MTA Angelus and ProRoot MTA. The crystals formation and precipitation were observed in neutral phosphate buffer saline solution was more than normal saline solution for all groups as a hydroxiapatite crystals.
- 26 June 2019
- Published by University Library System, University of Pittsburgh in Dentistry 3000
- Vol. 7 (1) , 7-12
Open AccessInvestigation of surface topography of different root-end filling materials: An in vitro study
Aim: Although there are many materials that can be used for retrograde filling in surgical endodontics, none of them can be regarded as an ideal material yet. The purpose of this study was to compare the surface topography of three different root-end filling materials.Methods: 36 extracted single rooted human incisor teeth were cleaned and decoronated to standardized 10 mm root lengths. The root segments were prepared and 2 mm apical resection were performed. The samples were randomly separeted to three groups (Group A: Ca(OH)2, Group B: MTA Angelus, Group C: ProRoot MTA), each comprised of 12 roots. Materials were placed as 2 mm apical barriers and obturated with guttapercha and AH-Plus sealer. Each group dimidiated two subgroups (A1,A2,B1,B2,C1,C2). Groups A1,B1,C1 were stored in normal saline (NS), groups A2,B2,C2 were stored in neutral phosphate buffer saline (NPBS) solution and samples were incubated at 370C for 2 weeks. Stereomicroscope (32X) was used to photograph the root-end filling.Results: All specimens demonstrated white crystals formation and sediment over the root-end filling materials and on the superficial border of the root-end cavities’ wall as a white plague. A2,B2,C2 samples have more crystal sediment on root-end fillings than samples A1,B1,C1. Dissolution and corrosion were observed in groups A1, A2.Conclusions: The results of this study revealed that calcium hydroxide is more resorbable than MTA Angelus and ProRoot MTA. The crystals formation and precipitation were observed in neutral phosphate buffer saline solution was more than normal saline solution for all groups as a hydroxiapatite crystals.