Comparison of the Root End Sealing Ability of Four Different Retrograde Filling Materials in Teeth with Root Apices Resected at Different Angles - An Invitro Study (original) (raw)
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Dental Journal of Advance Studies
Introduction Failure in surgical endodontic techniques can occur most commonly due to improper seal in the apical region. The root-end filling material used should not allow the contamination of the periapical tissue. The aim of the present study was to compare the ability of white mineral trioxide aggregate (MTA), white Portland cement (PC) and intermediate restorative material (IRM) for sealing root-end by dye leakage test. Materials and Methods 120 teeth with single root were prepared through instruments. Following obturation, the apex was cut, and a cavity was made. Then, the teeth were divided into four groups (Group I: MTA, Group II: white PC, Group III: IRM, Group IV: control). Cavities made at apex in the first three groups were then filled with the respective materials. Exposure to the dye, India Ink, was then done for a time period of 72 hours. The depth of penetration of dye inside the whole root was then evaluated with a magnification of 16X under stereomicroscope in vit...
Coronal and apical sealing ability of a new endodontic cement
Iranian endodontic journal, 2009
This in vitro study aims to evaluate the coronal and apical sealing ability of gutta-percha (GP) root filling used with either mineral trioxide aggregate (MTA), new endodontic cement (NEC) or AH26 as filler/sealers. Forty eight single-rooted extracted teeth were selected, decoronated and then instrumented. Samples were randomly divided into three experimental (n=12) and two control groups (n=6). In group 1, root canals were filled using lateral condensation technique (L); while single cone technique (S) was used for groups 2 and 3. AH26, MTA and NEC were the root canal sealer/fillers in groups 1, 2 and 3, respectively. Samples were immersed in 1% methylene-blue dye and then independently centrifuged apically and coronally. The roots were split longitudinally and linear extent of dye penetration was measured with a stereomicroscope from apical and coronal directions. Data were analyzed using One-way ANOVA and T-test. No statistical differences in mean apical dye penetration between g...
Evaluation of Three Resin-Based Root End Filling Materials in Surgical Endodontics
2011
Surgical endodontics becomes necessary when conventional therapy is not feasible or successful. The most frequently performed procedures; in this situation is apicoectomy and retrograde filling in the resected root end. The purpose of this study was to compare between the sealing abilities as well as the working time of three root end filling materials; self-adhesive cement (Rely X Unicem ) and composite resin (Tetric Ceram composite resin) combined with two different types of two-step bonding agents, etch-and-rinse (Excite- Ivoclar- Vivadent)versus self-etch (Clearfil SE-Bond-Kuraray) systems. Methodology: thirty recently extracted human, permanent single-canalled teeth were selected for this study. Endodontic access cavity preparation was done in all teeth, and finally coronal access was sealed with composite .Teeth were randomly assigned into two equal groups :Group A(no bevel) : 3 mm of the roots were resected in a plane perpendicular to the long axis of the tooth with no bevel ...
Sealing ability of a novel endodontic cement as a root-end filling material
Journal of Biomedical Materials Research Part A, 2008
This study investigated the potential usage of novel endodontic cement (NEC) as a root-end filling material by comparing its sealing ability with that of mineral trioxide aggregate (MTA) and intermediate restorative material (IRM). Sixty-six single rooted extracted human teeth were cleaned, shaped, and obturated in a similar method. After root-end resection, 3-mm deep root-end cavities were ultrasonically prepared. The samples were divided randomly into 3 test groups, having 20 roots each. Six roots were used as positive and negative controls. Samples were filled with test materials and after one day were immersed in methylene blue dye for 24 h. Roots were sectioned longi-tudinally and examined under stereomicroscope. Positive and negative controls responded as expected. The increasing order of mean dye microleakage values was NEC < MTA < IRM. ANOVA test showed statistically significant differences among experimental groups (p < 0.001). Tukey's test revealed no significant difference between NEC and MTA. It was concluded that the sealing ability of NEC and MTA is the same and superior to IRM.
Sealing ability of two root-end filling materials at different retro-preparation lengths
Journal of Oral Science
The aim of the present study was to evaluate the sealing performance, expressed as microleakage (ML), of two root-end filling materials when used at different retro-preparation lengths. Methods: Fifty single-rooted human teeth were collected for the study. The teeth were cut at the cement-enamel junction and endodontic treatment was performed. Each root was cut at 3 mm from the apex and then stored in wet condition. The teeth were divided into three groups according to the retro-preparation length: control group (no retro-preparation); group 1 (retro-preparation of 3 mm); group 2 (retro-preparation of 9 mm). The teeth were equally allocated to either Biodentine or Super EBA treatment group. The teeth were immersed in 3% methylene blue dye solution for 24 h. The samples were split longitudinally and the depth of dye penetration was examined through light microscopy. Results: No significant statistical differences were found at different retropreparation lengths (P > 0.05). Differences were found between materials (P > 0.05). Conclusion: Biodentine showed significantly lower ML when compared to Super-EBA and no statistical significative differences were observed when samples were retro-prepared at 3 mm or 9 mm.
Iranian endodontic journal, 2010
Sealing ability is an important factor for a root-end filling material in endodontic surgeries. This in vitro study aimed to compare the sealing ability of mineral trioxide aggregate (MTA) and a new endodontic cement named calcium enriched mixture (CEM) cement as root-end filling materials. The experiments were carried out in dry, saliva or blood contaminated root-end cavities of hundred single-rooted extracted human teeth. After decoronation, the root canals were cleaned, shaped, obturated, and stored in 100% humidity for 5 days. Removing the apical 2-3mm of each root, a 3mm deep root-end cavity was ultrasonically prepared. Samples were randomly divided into 2 test groups of 45 roots/experimental material, and one subgroup (n=15) for each environmental condition as follows; a) dried before placing the filling material, b) filled after contamination with saliva, and c) filled after contamination with blood. Ten roots were used as positive/negative controls. Samples were placed in an...
A Comparative Evaluation of Apical Sealability of Various Root Canal Sealers Used in Endodontics
Objective: One of the major reasons for root canal failure is microleakage through the apex. There are various types of root apex sealers being used in endodontic practices with varying rate of clinical success. This study was planned to evaluate the sealing ability of Zinc oxide eugenol based, Calcium hydroxide based, resin based and tricalcium based root canal sealers using dye penetration method. Material and Methods: It was an experimental study with randomized control trial. Fifty (50) extracted incisors were prepared for root canal obturation. The apical enlargement up to K file 25 was done using stepback technique and resto of the canal was flared up to K file 60.Sodium Hypochlorite was used as irrigant. After instrumentation, the 40 teeth were obturated using various sealers and 10 were obturated without any sealer followed by lateral condensation technique. Prepared samples were divided into four groups (10 teeth each with one of the sealers) of experimental study and two groups (5 teeth each without sealer) for control. 45 samples were coronally sealed with sticky wax and surface coated with nail polish leaving apical 2 mm. Among samples obturated without a sealer, 5 were coronally sealed with sticky wax but surface treated to the full length of the root. All the samples were then assessed for 2% methylene blue dye penetration test. Results: Inter group comparison showed that samples apically obturated with tricalcium phosphate sealer performed the best sealing ability as compared to other ones used in the study. Conclusion: No sealer used in this study perfectly seals apex. INTRODUCTION Apical leakage in a root filled tooth is considered a commonest cause for failure of endodontic therapy and is influenced by many variables such as difference of obturation techniques, presence or absence of a smear layer and properties of the used root canal sealers1). A root-canal sealer is used to adhere to the dentinal walls of a canal in order to fill the irregularities and minor discrepancies between the core obturating material (Gutta Percha) and the canal walls, thus providing a hermetic seal2). There are numerous brands and types of root-canal sealers used in current endodontic practices. An ideal root-canal sealer should have low viscosity and a good-wetting property to flow into the irregularities on the wall of the root canal and fill the space between the Gutta-Percha cones and surface of the root-canal. They generally can be classified on the basis of their main ingredients, as Zinc oxide based, Calcium Hydroxide based, Resin based and glass ionomer based1,3). Zinc – oxide eugenol sealers have been a standard in endodontics for many years4). Calcium Hydroxide based sealer have shown good sealing ability and biocompatibility with the surrounding tissues5). Resin-based sealers have shown to produce an effective apical seal6). Recently, materials composed of hydroxyapatite and tricalcium phosphate (Apatite) have been advocated as a sealer. It seems to be
Journal of Oral Science, 2011
Inadequate apical seal is the major cause of surgical endodontic failure. The root-end filling material used should prevent egress of potential contaminants into periapical tissue. The purpose of this study was to compare the sealing ability of four root-end filling materials: white mineral trioxide aggregate (MTA), gray MTA, white Portland cement (PC) and gray PC by dye leakage test. Ninety-six human single-rooted teeth were instrumented, and obturated with gutta-percha. After resecting the apex, an apical cavity was prepared. The teeth were randomly divided into four experimental groups (A: white MTA, B: gray MTA, C: white PC and D: gray PC; n = 20) and two control groups (positive and negative control groups; n = 8). Root-end cavities in the experimental groups were filled with the experimental materials. The teeth were exposed to Indian ink for 72 hours. The extent of dye penetration was measured with a stereomicroscope at 16× magnification. The negative controls showed no dye penetration and dye penetration was seen in the entire root-end cavity of positive controls. However, there was no statistically significant difference among the four experimental groups (P > 0.05). All retrograde filling materials tested in this study showed the same microleakage in vitro. Given the low cost and apparently similar sealing ability of PC, PC could be considered as a substitute for MTA as a root-end filling material.
IP innovative publication pvt. ltd, 2019
Introduction and objectives: The seal provided by root-end filling materials determines the success of endodontic surgery since prevents penetration of tissue fluids into the root canals. Therefore, the aim of this study is to compare the sealing ability of two different root‑end filling materials. Materials and Methods: Forty-Five mandibular premolars were obturated with laterally condensed gutta‑percha and AH plus sealer. The roots resected 3 mm perpendicular to the long axis of the tooth. Root‑end cavities were prepared no.2 ultrasonic tip. The teeth were then divided into two experimental and one control group, and cavities restored as per the groupings. The teeth were immersed in India ink for 72 hrs, split longitudinally, and dye penetration was measured under stereomicroscope. Results: There was no statistically significant difference among the two groups. Keywords: Biodentine, Giomer, Root-end preparation, Dye penetration.
Coronal sealing ability of a new root canal filling material
Journal of the Canadian Dental Association, 2007
To date, many different materials have been proposed for root canal fillings, but gutta-percha (used with various types of sealers) has remained the material of choice for over a century. A new root canal obturation system, the Epiphany endodontic obturation system, has been developed to replace gutta-percha and traditional sealers for root canal obturation. The purpose of this study was to evaluate the coronal sealing ability of the new endodontic obturation system. Seventy-two maxillary and mandibular single-rooted human teeth extracted for periodontal reasons were used. The root canals were instrumented using the step-back technique and were irrigated with 5.25% sodium hypochlorite. The smear layer was removed by washing in 10 mL of 17% ethylenediamine tetra-acetic acid (EDTA). The specimens were randomly divided into 3 groups (group 1 to be filled with gutta-percha and AH 26 sealer, group 2 with gutta-percha and AH plus sealer, and group 3 with Epiphany self-etch sealer and Resi...