Vertical Compaction Technique Research Articles

Quality of different obturation techniques to fill perforating internal root resorption: a micro-computed tomographic study

BackgroundThis study aimed to assess the quality of various obturation techniques to fill perforation caused by internal root resorption using Micro-computed Tomography.MethodsCone-beam computed tomography images of a maxillary central incisor tooth with perforating internal resorptive defect were used to create a 3D printed model of the affected tooth. The replicas were divided into four groups based on the obturation technique used. The techniques included Group 1: a polydimethylsiloxane-based sealer (GuttaFlow-2) with gutta-percha. Group 2: same as Group 1 except for using a pre-mixed Bioceramic-based sealer (NeoSEALER Flo). Group 3: the defect was filled entirely using the NeoSealer Flo Bioceramic-based sealer. Group 4: the samples were obturated using the warm vertical compaction technique with a resin-based sealer (ADSeal). The resin models were then scanned a micro-computed scanner to evaluate the percentage of voids in each group.ResultsThe results showed that NeoSEALER Flo groups had significantly the highest volume of voids while GuttaFlow-2 and warm vertical compaction groups had the lowest void volume.ConclusionsGuttaFlow-2 and warm vertical compaction techniques performed best in filling the internal resorptive defect.

Retreatability of NeoSEALER Flo obturated with warm vertical compaction versus single-cone technique using two different retreatment systems.

The aim of this study was to compare the retreatability of NeoSEALER Flo obturated with warm vertical compaction (WVC) and single-cone (SC) techniques using two different retreatment systems. Thirty-two root canals were shaped and obturated with NeoSEALER Flo either in an SC obturation technique or a WVC technique. Samples were retreated using ProTaper retreatment or EdgeFile XR retreatment system. The percentage of remaining debris after retreatment was analyzed under a scanning electron microscope using ImageJ software. The time taken to reach full working length (WL) and induce patency was recorded. Statistical analysis was performed using an unpaired t-test and a one-way analysis of variance test. The percentage of remaining debris after retreatment was significantly higher in the SC technique than in the WVC technique, regardless of the retreatment system used. EdgeFile XR system removed more filling material than the ProTaper retreatment system, regardless of the obturation technique. The apical region showed significantly higher remaining debris than other regions in all groups. The WL and patency were achieved faster in the SC group, while in the WVC group, the EdgeFile XR system was faster. The WVC technique showed better retrieval of the filling material; however, a longer time was taken for retreatment. EdgeFile XR system performed better in removing filling materials from inside the canals.

Evaluation of Density and Homogeneity of Three Different Root Canal Obturation Techniques: A Three –Dimensional Computed Tomography In Vitro Study

The aim of this in vitro study was to compare three dimensionally the density and homogeneity of cold lateral compaction, warm vertical compacti on and guttaflow root canal obturation techniques using computed tomography. Thirty canals of 12 mm from extracted lower single canal premolars were selected then instrumented and divided randomly into 3 groups with 10 roots in each group. Group I was obturation with cold lateral compaction technique, group II was obturated with warm vertical compaction technique and group III was obturated with guttaflow system. The specimens were then analyzed for the density and homogeneity in both vertical and hor i zontalsections in apical, middle and coronal third with 1 mm section thickness using computed tomography. The data obtained in hounsefield units were subjected to statistical analysis. In conclusionguttaflow was superior in the apical part and none of the tested obturation techniques can achieve three dimensional dense and homogenous obturation from apical to coronal parts of root.

In vitro comparative evaluation of apical leakage using a bioceramic sealer with three different obturating techniques: A glucose leakage model.

Bioceramic sealers have improved sealing ability by forming an interfacial apatite layer that chemically bonds the sealer and radicular dentin thus decrease apical leakage. This study aims to evaluate and compare the apical leakage of Cerafill RCS bioceramic sealer and gutta percha when used with three different obturating techniques. Thirty-four extracted single-rooted premolars were decoronated and prepared up to size F3. Then, the specimens were randomly divided into 3 experimental groups (n = 10) cold lateral obturation technique, warm vertical obturation technique, single-cone obturation technique, positive and negative control groups (n = 2), according to the obturation technique used along with a bioceramic sealer. To evaluate apical leakage, all specimens were mounted in a glucose leakage model and assessed at 7 and 14 days using an ultraviolet-visible spectrophotometer. The results were subjected to ANOVA/Kruskal-Wallis ANOVA; followed by post hoc analysis using Bonferroni correction. Significant differences were found in the cumulative leakage of all the three experimental groups. Significantly higher leakage was found in groups obturated using single-cone obturation technique as compared to warm vertical compaction technique at both 7 and 14 days. Warm vertical compaction showed a better sealing result than single-cone obturation techniques at all observation periods.

Effectiveness of Four Different Obturation Techniques on the Penetration Depth of Bioceramic Sealers into the Dentin Tubules: An In Vitro Study

Introduction: We aimed to assess the penetration depth of bioceramic sealers into the dentin tubules following different root canal obturation techniques included (A) warm vertical compaction, (B) carrier-based technique, (C) cold lateral compaction, and (D) single-cone obturation. Methods: This study utilized 40 extracted lower first premolars with developed apices and circular and straight root canals. The roots were eliminated to achieve an 11-mm length with a coronal flat measurement point. ProTaper Next rotary system was used for instrumentation. For obturation procedures, gutta-percha and Bio-C bioceramic sealer were employed, and the roots were randomly divided into four study groups, including (A) warm vertical compaction, (B) carrier-based technique, (C) cold lateral compaction, and (D) single-cone obturation. Depth of sealer penetration into the tubules was assessed using scanning electron microscopy. Result: We found significant differences in the penetration depth of bioceramic sealers based on obturation techniques (p < 0.001), location of dentin tubules (coronal, middle, or apical third) (p < 0.001), and the interaction between obturation techniques and location (p = 0.042). Conclusion: The warm vertical compaction and carrier-based technique showed superior penetration depth into the dentin tubules.

“Effect of Heat Generated by Endodontic Obturation Techniques on Bond Strength of Bioceramic Sealers to Dentine”

IntroductionGutta-percha combined with an endodontic sealer remains the most widely used obturation technique. Bioceramic sealers (BS) were developed for root canal obturation in combination with gutta-percha cones using the cold single-cone technique. Few studies have assessed the effect of thermal treatment on the performance of BS. The present study evaluated the effect of heat on BS adhesion to root dentine in the apical third of the root canal of extracted human lower premolars. Materials and MethodsThree BS combined with a hydraulic condensation technique, a warm vertical compaction technique, and a carrier-based technique were evaluated. Sixty three lower premolars were prepared following the same surgical protocol to standardize root canal shape at the level of the apex, randomly assigned to one of nine groups, and obturated accordingly. One millimeter-thick sections were subjected to a push-out test using a universal testing machine and classified according to mode of failure. Two-way ANOVA was applied using SPSS software (IBM Corp). ResultsNo significant differences in maximum load or failure mode were observed among BS, techniques, or when considering the interaction between sealers and techniques. ConclusionsThe heat generated by the obturation techniques used here did not affect BS adhesion to the dentinal wall.

The Influence of Irrigating Solutions on the Penetration of Epoxy AH Plus Sealer in Dentinal Tubules—In Vitro Confocal Microscopy Study

Background: The proper sealing of the root canal seems to be critical to obtain a stable result of endodontic therapy. The sealer’s penetration into dentinal tubules during root canal treatment is probably a crucial factor to provide better clinical results. The aim of this study was to compare the effect of three irrigation protocols on the penetration of the epoxy sealer into dentinal tubules and two dyes used to stain the sealer. Methods: Ninety single-canaled human teeth with straight roots were used. The root canals were instrumented with Reciproc instruments up to the size 40/04 ISO. The teeth were divided into three groups (n = 30). The root canals of each group were rinsed accordingly: the control group 1: 5.25% sodium hypochlorite (NaOCl); the experimental group 2: smear layer removal (two times alternatively: 40% citric acid and 5.25% NaOCl) and NaOCl; the experimental group 3: smear layer removal (same as in group 2) and isopropyl alcohol. In each group the roots were further divided into 2 subgroups (n = 15). The root canals were obturated using warm vertical compaction technique of gutta-percha with AH Plus sealer marked with hydrophilic fluorescein (subgroup F) or hydrophobic porphyrin (subgroup P). After 72 h, one-millimeter-thick cross-sections were cut in two, five and eight millimeters distance from the apex. The depth of the penetration of the sealer into the dentinal tubules (resin tags) was measured with the use of a confocal laser microscope. Results: In of all the root parts, the longest resin tags were observed in group 2, whereas the shortest ones were found in group 1 (in the porphyrin subgroups all differences were statistically significant). Within the fluorescein subgroups, the differences between all groups were statistically significant in the middle section of the roots. In the apical and the coronal sections, significant differences were observed between group 1 and the other two groups. Conclusions: The isopropyl alcohol at the end of the irrigating protocol did not affect the higher sealer penetration of the sealer into the dentinal tubules compared with sodium hypochlorite. With the limitation of this study, the hydrophobic porphyrin may be considered as the favorable dye choice to stain endodontic sealers in further studies with confocal laser scanning microscopy, but the methods and reagents used should still be in the research phase.

Effect of continuous chelation on the dentinal tubule penetration of a calcium silicate–based root canal sealer: a confocal laser microscopy study

BackgroundThis study aimed to evaluate the effect of various irrigation protocols on the penetration depth of a calcium silicate–based sealer into dentinal tubules using confocal laser scanning microscopy (CLSM).MethodsTwenty single-rooted mandibular premolars were endodontically prepared and divided into the following two groups according to the irrigation protocol used (n = 10): Group I: NaOCl + EDTA and Group II: continuous chelation (NaOCl/Dual Rinse). Obturation was performed with the warm vertical compaction technique using TotalFill HiFlow bioceramic sealer mixed with a fluorophore dye. Samples were observed using CLSM at 10× to measure the percentage of sealer penetration and its maximum depth into the dentinal tubules. Data were analysed using one-way ANOVA followed by Tukey’s post-hoc test. The significance level was set at p < 0.05 within all tests.ResultsComparing the overall results of all sections tested, no statistically significant differences existed between the groups regarding the percentage of sealer penetration (p = 0.612) and maximum depth of penetration (p > 0.05).ConclusionsWith both types of irrigation used, dentinal tubule penetration was higher in the coronal section than in the apical section. Continuous chelation using NaOCl/Dual Rinse HEDP performed better in the coronal segments, while irrigation using NaOCl + EDTA promoted a higher percentage of sealer penetration in the apical segment.

Comparable Effectiveness of Photon-Induced Photoacoustic Streaming with XP-Endo Finisher and Passive Ultrasonic Irrigation on Removing Residual Root Canal Filling Materials from Oval Canals.

Objective: This study aimed to evaluate the effectiveness of photon-induced photoacoustic streaming (PIPS), XP-endo Finisher (XPF), and passive ultrasonic irrigation (PUI) for the removal of root canal filling materials from oval root canals. Background: Various adjunctive irrigation techniques following mechanical preparation have been applied to enhance removal of fillings during root canal retreatment. However, whether there is superiority of one approach over others remains controversial. Methods: Thirty extracted single-rooted teeth with oval-shaped canals were instrumented with the ProTaper Next (PTN) system and obturated with the warm vertical compaction technique. After storage at 37°C for 1 month, retreatment was performed with the PTN system up to size X4. The teeth were then randomly assigned into three groups (n = 10) that were, respectively, subjected to supplementary irrigation with different protocols: PIPS, PUI, and XPF, followed by measurement of filling material volumes using high-resolution micro-computed tomography. Results: The PTN preparation resulted in significant reductions in residual filling materials (p < 0.05), whereas PIPS, PUI, and XPF moderately improved the removal of the remnants (p > 0.05). The residual filling materials after supplementary irrigation ranged from 0.384 ± 0.181 to 0.421 ± 0.143 mm3 in oval canals. There was no significant difference in the effectiveness among the PIPS, PUI, and XPF approaches (p > 0.05). Conclusions: Mechanical preparations are useful for removing most root fillings during retreatment in oval-shaped canals. PIPS can reduce residual root-filling materials to the similar extent as PUI and XPF.

Sealing Efficiency of BeeFill 2in1 Filling Technique and Cold Lateral Compaction Technique

Objective: To discuss sealing properties between BeeFill 2in1 warm vertical compaction technique and cold lateral compaction technique. Methods: Group1 BeeFill 2in1, Group 2: cold lateral compaction. The leakage specimens were measured using the transverse root sectioning, after 1 month. Results: The statistical analysis showed that the frequency of section with void, the percentage of void area and the percentage of sections at 1 mm–13 mm levels, the BeeFill 2in1 group were lower than those of the cold lateral compaction group. Conclusion: BeeFill 2in1 warm vertical compaction technique has its advantage in dealing with the long oval canal.

Effectiveness of Retreatment of Oval-Shaped Canals Filled With Warm Gutta-Percha: A Systematic Review

Oval-shaped canals with their isthmuses and inter-canal communications represent a challenge for secondary endodontic treatment. Different techniques have been proposed to enhance the filling removal during retreatment procedures of oval canals filled with warm gutta-percha techniques. The aim of this review article is to systematically summarize and analyze published in vitro studies over a ten-year period of time (2012-2022), evaluating the effectiveness of retreatment of oval-shaped canals filled with warm vertical compaction technique and/or carrier-based gutta-percha. A thorough search in PubMed - MEDLINE, The Cochrane Library and Science Direct databases and manual web search was performed. After the investigations were assessed by two reviewers. A total number of eleven articles out of 145 titles covered all eligibility criteria and were selected for further synthesis. All articles investigated the effectiveness of retreatment techniques in oval-shaped root canals filled with warm vertical compaction or/and carrier-based gutta-percha. According to the present review none of the currently described retreatment techniques resulted in completely clean of remnants root canal walls. Secondary endodontic treatment is still a difficult procedure and due to the complex anatomy of oval-shaped root canals, their retreatment represents even a bigger challenge and often requires additional cleaning procedures.

Comparative Evaluation Of Amount Of Apically Extruded Debris In Endodontic Retreatment Procedures Using Four Different File Systems- An Invitro Study

Objective(s): To compare the amount of apical debris extruded during endodontic retreatment procedures performed using H files, R-Endo Retreatment files, GPR files and ProTaper Universal Retreatment files.&#x0D; Materials and Methods: The conventional coronal access cavity was prepared for 40 extracted Mandibular Premolars. The root canals were prepared with ProTaper Next Rotary files till X1. Obturation was done by combination of Lateral and Vertical Compaction technique. All the samples were later attached to Eppendorf tubes. The samples were then divided into four groups each containing 10 samples on the basis of different retreatment files to be used. After complete removal of root canal filling material, the debris and the root filling material remnants adhered was collected in preattached Eppendorf tubes. For final weight computation and comparison, the weight of empty tube was deducted from the weight of tube accommodating the debris. ANOVA and Tukey test were applied for statistical analysis.&#x0D; Results: The R-Endo retreatment files showed minimum apical extrusion of debris than all the other examined files in the study. The apical extrusion of debris for R Endo min to max was -0.045 to 0.009. However, there was no statistically significant difference in amount of apical extrusion of debris by different files system (p&gt;0.005).&#x0D; Conclusion(s): There was no significant difference between the groups in apical extrusion of debris. Also rotary retreatment files showed lesser apical of debris than Hedstrom hand files. R Endo extruded less debris apically in this study.&#x0D; Keywords: Apical extrusion of debris; Gutta-percha; Retreatment files.

Effectiveness of the REvision System and Sonic Irrigation in the Removal of Root Canal Filling Material from Oval Canals: An In Vitro Study.

This study aimed to evaluate the effectiveness of the Endostar REvision system (Poldent, Warsaw, Poland) in the removal of filling materials from oval root canals using sonic irrigation as an additional cleaning method. Thirty human-extracted mandibular premolars with oval canals were prepared using the ProTaper Universal system (Dentsply Maillefer, Ballaigues, Switzerland) up to instrument F1 (20/.07), and then filled by the continuous wave vertical compaction technique using pulp canal sealer EWT (Sybron Dental Specialties, Orange, CA, USA). The teeth were randomly divided into two groups (n = 15) according to the instrumentation system and the additional cleaning method, as follows: REvision (30/.08, 25/.06) with EQ-S sonic activation (Meta Biomed, Chungcheongbuk-do, Korea), REvision (30/.08, 25/.06) without additional activation. All specimens were sectioned longitudinally at 3 and 7 mm from the apex, and analyzed using digital microscopy (KEYENCE, Osaka, Japan) to measure the total area of the residual obturation materials, followed by SEM analysis. The data on the percentage of remaining filling material were analyzed by Kruskal–Wallis one-way Analysis of Variance on ranks. None of the retreatment protocols completely removed the filling material from the root canals (p > 0.05); the retreatment technique using sonic activation showed statistically less residual filling materials than the retreatment technique using irrigants without activation at the coronal third (p < 0.05), whilst no significant difference was found between both tested groups at the apical and middle thirds (p > 0.05). The REvision system showed promising results in the removal of filling materials from oval canals.

Apical Extrusion Potential of Two Nickel-Titanium Retreatment Systems

The aim of the study was to quantify the amount of apically extruded debris during root canal filling removal with D-Race and Mtwo retreatment systems. Twenty-four extracted single-rooted mandibular incisors with straight oval-shaped root canals were instrumented with XP-Endo Shaper files and filled with gutta-percha and AH Plus sealer using vertical compaction technique. All filled samples were temporarily sealed with Citodur Hard and stored in distilled water for 30 days. The specimens were randomly divided into two groups, according to the nickel-titanium system used for root canal filling removal (n=12). The retreatment procedure was performed with Mtwo Retreatment and D-Race Retreatment. The extruded debris during retreatment procedures, was collected in preweighted Eppendorf tubes. The actual weight of extruded debris was calculated by subtracting the initial weight from the final weight of the Eppendorf tubes. Statistical analysis was performed using IBM SPSS Statistics 23.0 software. The level of significance was set at P&lt;0.05. The investigation results did not find statistically significant differences between the experimental groups. It could be concluded that retreatment with both Mtwo and D-Race cause apical extrusion of debris material with no statistically significant difference between the amounts produced by the two tested systems.

Comparison of Fracture Resistance between Single-cone and Warm Vertical Compaction Technique Using Bio-C Sealer® in Mandibular Incisors: An In Vitro Study

The aim of the study was to compare the fracture resistance of the single-cone technique with the warm vertical compaction technique (WVCT) in mandibular incisors using Bio-C sealer®, by applying a compressive force using a universal testing machine (UTM) (Instron 5943; Instron, Norwood, Massachusetts, USA). Twenty-two mandibular incisors were selected and divided into two groups after applying the same shaping protocol. To assess the influence of the wave vertical compaction technique on the fracture resistance, the first group was obturated by a single-cone obturation technique (SCOT) (n = 12), and the second group was obturated with a WVCT (n = 10). Bio-C sealer® (Angelus, Hague Netherlands) was used in the two obturation techniques. Wax-coated roots were put in an acrylic mold and loaded to compressive strength fracture in a mechanical material testing machine (UTM) (Instron 5943; Instron, Norwood, Massachusetts, USA), with Bluehill 3 software (version 3.15.1343) recording the maximum load at fracture. Fracture loads were compared statistically, and data were examined with the Mann-Whitney U test with a level of significance set at p ≤0.05. No statistically significant difference was registered between the SCOT (264.97 ± 83.975 N) and WVCT (313.35 ± 89.149 N) concerning the endodontically treated mandibular incisors' fracture resistance (p = 0.159). Warm vertical compaction technique (WVCT) did not affect the fracture resistance of endodontically treated mandibular incisors when compared to SCOT canal preparation. General practitioners and endodontists face challenges during root canal treatment such as cracks and root fractures. This article aims to guide experts in choosing between the single-cone and the continuous WVCT aiming for higher long-term quality of root canal filling.

Outcome of root canal treatment using Bioceramic sealer and resinbased sealer: An observational analytical study

The proper shaping and cleaning followed by well-sealed root canal system is desired for successful outcome of the endodontic treatment. With the advent of Bioceramic sealers and their beneficial biological properties, they have been widely incorporated in clinical practice. So, the purpose of this study was to find out the difference in the healing outcome of root canal treatments and retreatments carried out with either single cone obturation technique (SCO) or warm vertical compaction technique (WVC). This was observational analytical study (Cohort study), carried out in private practice. The patients were recalled at-least at six months. When association of healing with type of sealer was considered there was a statistically significant association between healing potential and type of sealer (p-value 0.03). Kaplan -Meier analysis for time to healing showed that with progress of time probability of healing was seen to be more in bioceramic sealer group. Within the limitations of this study the SCO had good healing potential and can be used as a safe alternative in obturation.

A micro-computed tomographic assessment of oval-shaped root canals obturated with bioceramic sealer using different obturation techniques

Background/Aim: To evaluate void volumes in oval-shaped root canals obturated with three different obturation systems using microcomputed tomography (micro-CT). Material and Methods: Twenty-four distal roots of mandibular molar teeth canals were prepared and randomly divided into three groups (n = 8 in each group). The canals were obturated using single cone (SC), GuttaCore (GC), and warm vertical compaction (WVC) techniques. Each specimen was scanned using a micro-CT device. The volumes of the voids were calculated, and the data were statistically analyzed using a one-way analysis of variance and post hoc Tukey's (P &lt; .05). Results: The void volumes in the WVC group were significantly lower than those in the other groups (P &lt; .05). When different root canal parts were examined, the void volumes increased significantly from the apical to the coronal level in the GC and SC groups (P &lt; .05). In the WVC group, most voids were observed in the middle part (P &lt; .05), whereas there was no significant difference in void volumes in the coronal and apical parts (P &gt; .05). Conclusions: None of the systems provided void-free root filling. However, the void volume using the WVC system was significantly lower than that observed using the other systems.

Comparative evaluation of efficacy of three single file retreatment systems for removal of gutta percha and assessment of root canal transportation - An In Vitro study.

In comparison to multiple file systems, recent advancements in single file retreatment systems had reduced the working time and ease of operation for clinicians. To compare the efficacy of retreatment systems compared with hand instrumentation, by evaluating their removal efficacy, time required for retreatment and assessment of canal transportation. Forty premolars were instrumented using ProTaper Gold gold files. Post instrumentation, scan was taken, obturated using warm vertical compaction technique, and stored in artificial saliva for three months and randomly divided into four groups for retreatment. Hand instrumentation (Hi), Neoniti (Nn), Mtwo R (Mt), WaveOne Gold (Wg). Post retreatment, scan was taken. Teeth were sectioned longitudinally and photographed under the stereomicroscope. Retreatment time was recorded, and canal transportation was calculated. The results were analyzed using one-way analysis of variance (ANOVA) followed by Tukey's post hoc test at 95% confidence level. The retreatment time was significantly longer in the Hi group. Within the test groups, a significantly longer time has been taken by Wg (p < 0.05) compared to Mt and Nn. There was no difference in the canal transportation between the single file systems at 3 mm, 6 mm and 9 mm from the apex, there was statistically significant higher transportation for the Hi group at 9 mm from the apex (p < 0.05). All techniques were effective in removal of filling material with minimal canal transportation. Wg system was shown to increased time compared to Nn and Mt systems. Hi group was slowest with maximum canal transportation at 9 mm from the apex.

Cleaning Efficiency of XP Finisher, XP Finisher R and Passive Ultrasonic Irrigation Following Retreatment of Teeth Obturated with TotalFill HiFlow Bioceramic Sealer.

ObjectiveThe aim of the study was to compare the cleaning efficiency of XP Finisher (FKG Dentaire, La Chaux-de-Fonds, Switzerland), XP Finisher R (FKG Dentaire), and passive ultrasonic irrigation after root canal retreatment.MethodsA total of 75 single-rooted human teeth were decoronated, instrumented using HyFlex EDM rotary files (Coltène/Whaledent Inc., Altstätten, Switzerland), and filled with gutta-percha and the TotalFill HiFlow bioceramic sealer (FKG Dentaire) using the warm vertical compaction technique. Retreatment was performed with D-Race rotary files (FKG Dentaire). Samples were randomly divided into five groups according to the activation protocol used. Samples were sectioned longitudinally and prepared for the scanning electron microscope. The percentages of cleaned canal walls in each third of the canal were determined using the ImageJ software. The one-way ANOVA test was used to make comparisons among all of the tested groups, with a pairwise comparison made with the Bonferroni correction. The significance level was set at P≤0.05.ResultsResults showed that none of the activation techniques used resulted in complete canal cleanliness. However, XP Finisher R and XP Finisher had better cleaning ability compared with passive ultrasonic irrigation in all thirds of each root canal (P<0.001).ConclusionThe cleaning efficiency of XP Finisher R and XP Finisher was superior to that of passive ultrasonic irrigation after the retreatment of the hydraulic calcium silicate sealer.

NONSURGICAL MANAGEMENT OF TYPE II DENS INVAGINATUS USING CBCT: A RARE CASE REPORT

Dens invaginatus (DI) is a developmental malformation resulting from invagination of the crown or root before calcification has occurred. In this case report, nonsurgical endodontic treatment and 5-year follow up results of right maxillary canine tooth with type II dens invaginatus is presented. A 40-year-old female patient was referred to the our clinic for treatment of her maxillary right canine tooth and rehabilitation of the dentition. Treatment of the invagination was performed two visits. Firstly, invagination area which was disconnected was completely removed from the root canal. The invagination area was instrumented and dressed with a calcium hydroxide paste. At the second appointment apexification of the root canal was done with white mineral trioxide aggregate which was compacted in the apical 3 mm. Complete obturation of the root canal and invaginated area were performed by using the warm vertical compaction technique. At 5-year follow-up, the patient was asymptomatic and the periradicular lesion showed satisfactory healing radiographically at this follow-up. Key Words: Apical plug, cone-beam computed tomography, dens invaginatus, nonsurgical endodontic treatment. TİP II DENS İNVAJİNATUSUN CBCT KULLANILARAK CERRAHİSİZ TEDAVİSİ: NADİR BİR VAKA RAPORU Öz Dens invajinatus (DI), kalsifikasyon meydana gelmeden önce kron veya kökün invajinasyonundan kaynaklanan gelişimsel bir malformasyondur. Bu olgu raporunda tip II dens invajinatusu bulunan üst sağ köpek dişinin cerrahisiz endodontik tedavisi ve 5 yıllık takip sonuçları sunulmaktadır. 40 yaşında bayan hasta sağ üst köpek dişinin ve eksik dişlerinin tedavisi için kliniğimize başvurdu. Tedavi iki seansta yapıldı. Birinci seansta öncelikle bağlantısı kesilen invajinasyon alanı kök kanalından tamamen çıkarıldı. İnvajinasyon alanı prepare edildi ve kalsiyum hidroksit patıyla dolduruldu. İkinci randevuda kök kanalının apeksifikasyonu apikal 3 mm'ye yerleştirilen beyaz mineral trioksit agregat ile yapıldı. Kök kanalının geri kalanı ve invajinasyon alanının dolumu ise sıcak dikey sıkıştırma tekniği kullanılarak gerçekleştirildi. 5 yıllık takipte, hasta asemptomatikti ve periradiküler lezyon radyografik olarak tatmin edici bir iyileşme göstermekteydi. Anahtar Kelimeler: Apikal tıkama, konik ışınlı bilgisayarlı tomografi, dens invajinatus, cerrahisiz endodontik tedavi