Effect of Remaining Dentin Thickness on Thermal Changes at the Root Surface During Obturation with Thermoplasticized Gutta-Percha in Internal Resorption Cavities
Year 2025,
Volume: 11 Issue: 1, 41 - 45, 27.03.2025
Öznur Sarıyılmaz
,
Evren Sarıyılmaz
,
Serkan Özkan
,
Alper Ilker
Abstract
Aim: The treatment of internal resorption aims to remove necrotic pulp tissue, disinfect the canal, and fill the canal system, including the resorption zone. Warm gutta-percha techniques are commonly recommended for sealing resorption defects due to their flowable properties, but concerns about temperature rises during the obturation process remain. This study investigates the effect of remaining dentin thickness on temperature changes at the root surface during thermoplasticized gutta-percha obturation in simulated internal resorption cavities.
Materials and Methods: In the study, thirty maxillary central incisor teeth were used, and the teeth were split into two halves. A resorption cavity was created on one root half, while the other half was used as a control. The teeth were divided into three groups based on the remaining dentin thickness in the halves that contain the internal resorption cavity (0.4 mm, 0.7 mm, and 1 mm). Temperature changes during the thermoplastic gutta-percha obturation were measured using thermocouples. A paired samples t-test was used to assess the differences between the resorptive and control surfaces, and a one-way ANOVA test was applied to evaluate the temperature variations across the groups.
Results: Statistically significant temperature differences between the resorption and control surfaces were observed in all groups, but no significant differences were found among the three dentin thickness groups.
Conclusion: The study concludes that internal resorption cavities lead to higher temperature transmission at the root surface during thermoplasticized gutta-percha obturation, regardless of dentin thickness. However, no significant differences in temperature were observed among different dentin thicknesses.
Ethical Statement
The protocol of this study was approved by Ordu University clinical research ethics committee (ODU KAEK 2016/70).
Supporting Institution
Ordu University Scientific Research Funding
Thanks
This study was supported by the Ordu University Scientific Research Funding (project no: AR-1666).
References
- 1. Patel S, Ricucci D, Durak C, Tay F. Internal root
resorption: a review. J Endod. 2010;36(7):1107-1121.
- 2. Wedenberg C, Zetterqvist L. Internal resorption in
human teeth--a histological, scanning electron
microscopic, and enzyme histochemical study. J Endod.
1987;13(6):255-259.
- 3. Dobrzańska J, Dobrzański LB, Dobrzański LA,
Gołombek K, Dobrzańska-Danikiewicz AD. (2021). Is
Gutta-Percha Still the “Gold Standard” among Filling
Materials in Endodontic Treatment? Processes.
2021;9(8):1467.
- 4. Vishwanath V, Rao HM. Gutta-percha in
endodontics - A comprehensive review of material
science. J Conserv Dent. 2019;22:216-22.
- 5. Kulild J, Lee C, Dryden J, Collins J, Feil P. A
comparison of 5 gutta-percha obturation techniques to
replicate canal defects. Oral Surg Oral Med Oral Pathol
Oral Radiol Endod. 2007;103(1):e28-e32.
- 6. Gencoglu N, Yildrim T, Garip Y, Karagenc B,
Yilmaz H. Effectiveness of different gutta-percha
techniques when filling experimental internal
resorptive cavities. Int Endod J. 2008;41:836-42.
- 7. Keles A, Ahmetoglu F, Uzun I. Quality of different
gutta-percha techniques when filling experimental
internal resorptive cavities: a micro-computed
tomography study. Aust Endod J. 2014;40(3):131-135.
- 8. Zhou X, ChenY, Wei X, Liu L, Zhang F,Shi Y, Wu
W. Heat transfers to periodontal tissues and guttapercha during thermoplasticized root canal obturation
in a finite element analysis model. Oral Surg Oral Med
Oral Pathol Oral Radiol Endod. 2010;110:257-263.
- 9. Ulusoy ÖI, Yılmazoğlu MZ, Görgül G. Effect of
several thermoplastic canal filling techniques on
surface temperature rise on roots with simulated
internal resorption cavities: an infrared thermographic
analysis. Int Endod J. 2015;48(2):171-176.
- 10. Diegritz C, Gerlitzki O, Fotiadou C, Folwaczny M.
Temperature changes on the root surface during
application of warm vertical compaction using three
different obturation units. Odontol. 2020;108(3):358-
365.
- 11.Lipski M. In vitro infrared thermographic assessment of root surface temperatures generated by high
temperature thermoplasticized injectable guttapercha o
bturation technique. J Endod. 2006;32(5):438‐441.
- 12. Beraldo DZ, Pereira KFS, Yoshinari FMS, Pinto JOP, de Abreu Mateus TH, Zafalon EJ. Temperature
changes on external root surfaces with the use of several
thermoplastic filling techniques. J
Endod. 2016;42(7):1131-1134.
- 13. Eriksson AR, Albrektsson T. Temperature threshold
levels for heat-induced bone tissue injury vitalmicroscopic study in the rabbit. J Prost Dent.
1983;50:101-107.
- 14. Lipski, M. Root surface temperature rises in vitro
during root canal obturation with thermoplasticized
gutta-percha on a carrier or by injection. J
Endod. 2004;30(6):441-443.
- 15.Lipski M. Root surface temperature rises during ro
ot canal obturation, in vitro, by the continuous wave of
condensation technique using System B HeatSource.
Oral Surg Oral Med Oral Pathol Oral Radiol
Endod. 2005;99(4):505‐510.
- 16. Al-Shimari SAT, Al-Nuaimi NE. Elevation in
surface temperature of root canals obturated with
different thermoplasticized gutta-percha obturation
techniques-an in vitro study. J Bagh
Coll Dentistry. 2014;26(1):67-70.
- 17. Lee FS, Van Cura JE, BeGole E. A comparison of
root surface temperatures using different obturation
heat sources. J Endod. 1998;24(9):617-620.
- 18. Cen R, Wang R, Cheung GSP. Periodontal Blood
Flow Protects the Alveolar Bone from Thermal Injury
during Thermoplasticized Obturation: A Finite Element
Analysis Study. J Endod. 2018;44(1):139-144.
İnternal Rezorpsiyon Kavitelerinin Termoplastik Gutta-Perka ile Doldurulması Sırasında Kök Yüzeyinde Oluşan Termal Değişiklikler Üzerinde Kalan Dentin Kalınlığının Etkisi
Year 2025,
Volume: 11 Issue: 1, 41 - 45, 27.03.2025
Öznur Sarıyılmaz
,
Evren Sarıyılmaz
,
Serkan Özkan
,
Alper Ilker
Abstract
Amaç: İnternal rezorpsiyon tedavisinin amacı nekrotik pulpa dokusunu uzaklaştırmak, kanalı dezenfekte etmek ve rezorpsiyon bölgesi de dahil olmak üzere kanal sistemini doldurmaktır. Sıcak güta perka teknikleri, akışkan özellikleri nedeniyle rezorpsiyon defektlerinin kapatılması için yaygın olarak önerilmektedir, ancak obturasyon işlemi sırasında sıcaklık artışları ile ilgili endişeler devam etmektedir. Bu çalışmada, simüle edilmiş internal rezorpsiyon kavitelerinde termoplastik güta perka obturasyonu sırasında kalan dentin kalınlığının kök yüzeyindeki sıcaklık değişimleri üzerindeki etkisi araştırılmıştır.
Gereç ve Yöntemler: Çalışmada otuz maksiller santral kesici diş iki yarım parçaya ayrılarak kullanıldı. Bir kök yarısında rezorpsiyon kavitesi oluşturulurken, diğer yarısı kontrol olarak kullanıldı. İnternal rezorpsiyon kavitesinde kalan dentin kalınlığına göre dişler üç gruba ayrıldı (0.4 mm, 0.7 mm ve 1 mm). Termoplastik gutta-perka ile doldurulması sırasında meydana gelen sıcaklık değişiklikleri thermocouple kullanılarak ölçüldü. Rezorpsiyonlu ve kontrol yüzeyleri arasındaki farkları değerlendirmek için eşleştirilmiş örneklem t-testi, gruplar arasındaki sıcaklık değişimlerini değerlendirmek için ise tek yönlü ANOVA testi kullanıldı.
Bulgular: Tüm gruplarda rezorpsiyonlu ve kontrol yüzeyleri arasında istatistiksel olarak anlamlı sıcaklık farkları gözlenmiştir, ancak üç farklı dentin kalınlığı grubu arasında kök yüzeyine ulaşan sıcaklık değerlerinde anlamlı bir fark bulunmamıştır.
Sonuç: Çalışma, internal rezorpsiyon kavitelerinin, termoplastik gutta-perka ile doldurulması sırasında kök yüzeyinde daha yüksek sıcaklık iletimine neden olduğunu, ancak dentin kalınlığına bağlı olarak sıcaklık farklarının anlamlı olmadığını ortaya koymaktadır.
Ethical Statement
Bu çalışmanın protokolü Ordu Üniversitesi klinik araştırmalar etik kurulu (ODU KAEK 2016/70) tarafından onaylanmıştır.
Supporting Institution
Ordu Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi
Thanks
This study was supported by the Ordu University Scientific Research Funding (project no: AR-1666). Bu çalışma Ordu Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi tarafından desteklenmiştir.
References
- 1. Patel S, Ricucci D, Durak C, Tay F. Internal root
resorption: a review. J Endod. 2010;36(7):1107-1121.
- 2. Wedenberg C, Zetterqvist L. Internal resorption in
human teeth--a histological, scanning electron
microscopic, and enzyme histochemical study. J Endod.
1987;13(6):255-259.
- 3. Dobrzańska J, Dobrzański LB, Dobrzański LA,
Gołombek K, Dobrzańska-Danikiewicz AD. (2021). Is
Gutta-Percha Still the “Gold Standard” among Filling
Materials in Endodontic Treatment? Processes.
2021;9(8):1467.
- 4. Vishwanath V, Rao HM. Gutta-percha in
endodontics - A comprehensive review of material
science. J Conserv Dent. 2019;22:216-22.
- 5. Kulild J, Lee C, Dryden J, Collins J, Feil P. A
comparison of 5 gutta-percha obturation techniques to
replicate canal defects. Oral Surg Oral Med Oral Pathol
Oral Radiol Endod. 2007;103(1):e28-e32.
- 6. Gencoglu N, Yildrim T, Garip Y, Karagenc B,
Yilmaz H. Effectiveness of different gutta-percha
techniques when filling experimental internal
resorptive cavities. Int Endod J. 2008;41:836-42.
- 7. Keles A, Ahmetoglu F, Uzun I. Quality of different
gutta-percha techniques when filling experimental
internal resorptive cavities: a micro-computed
tomography study. Aust Endod J. 2014;40(3):131-135.
- 8. Zhou X, ChenY, Wei X, Liu L, Zhang F,Shi Y, Wu
W. Heat transfers to periodontal tissues and guttapercha during thermoplasticized root canal obturation
in a finite element analysis model. Oral Surg Oral Med
Oral Pathol Oral Radiol Endod. 2010;110:257-263.
- 9. Ulusoy ÖI, Yılmazoğlu MZ, Görgül G. Effect of
several thermoplastic canal filling techniques on
surface temperature rise on roots with simulated
internal resorption cavities: an infrared thermographic
analysis. Int Endod J. 2015;48(2):171-176.
- 10. Diegritz C, Gerlitzki O, Fotiadou C, Folwaczny M.
Temperature changes on the root surface during
application of warm vertical compaction using three
different obturation units. Odontol. 2020;108(3):358-
365.
- 11.Lipski M. In vitro infrared thermographic assessment of root surface temperatures generated by high
temperature thermoplasticized injectable guttapercha o
bturation technique. J Endod. 2006;32(5):438‐441.
- 12. Beraldo DZ, Pereira KFS, Yoshinari FMS, Pinto JOP, de Abreu Mateus TH, Zafalon EJ. Temperature
changes on external root surfaces with the use of several
thermoplastic filling techniques. J
Endod. 2016;42(7):1131-1134.
- 13. Eriksson AR, Albrektsson T. Temperature threshold
levels for heat-induced bone tissue injury vitalmicroscopic study in the rabbit. J Prost Dent.
1983;50:101-107.
- 14. Lipski, M. Root surface temperature rises in vitro
during root canal obturation with thermoplasticized
gutta-percha on a carrier or by injection. J
Endod. 2004;30(6):441-443.
- 15.Lipski M. Root surface temperature rises during ro
ot canal obturation, in vitro, by the continuous wave of
condensation technique using System B HeatSource.
Oral Surg Oral Med Oral Pathol Oral Radiol
Endod. 2005;99(4):505‐510.
- 16. Al-Shimari SAT, Al-Nuaimi NE. Elevation in
surface temperature of root canals obturated with
different thermoplasticized gutta-percha obturation
techniques-an in vitro study. J Bagh
Coll Dentistry. 2014;26(1):67-70.
- 17. Lee FS, Van Cura JE, BeGole E. A comparison of
root surface temperatures using different obturation
heat sources. J Endod. 1998;24(9):617-620.
- 18. Cen R, Wang R, Cheung GSP. Periodontal Blood
Flow Protects the Alveolar Bone from Thermal Injury
during Thermoplasticized Obturation: A Finite Element
Analysis Study. J Endod. 2018;44(1):139-144.