Influence of a calcium hydroxide-based intracanal dressing on the quality of the root canal filling assessed by capillary flow porometry

Abstract Introduction Endodontically treated teeth with extensive coronary destruction require posts and cores to enable prosthetic restoration. Despite the increasing use of prefabricated posts, cast metal posts and cores are still widely used. The quality of the latter is important for the longevity of restorative treatment, and failure can occur if the fundamental principles are not followed. Objective To radiographically evaluate the prosthetic principles of 1000 cast metal post-and-core restorations performed in single-rooted teeth and their coherence with the principles used for their confection. Material and method Digital periapical radiographs of 1000 endodontically treated, single-rooted teeth with cast metal posts and cores were selected from the collection of a radiology clinic (Centro de Imagem, Aracaju/SE, Brazil). The images were analyzed using a measurement software (ImageJ, USA) in accordance with the fundamental prosthetic principles: length and diameter of the post, ratio between post and bone crest, contiguity of post to the root canal, gap between post and the remaining root canal filling, amount of remaining root canal filling, and absence of periapical lesion. The data were qualitatively analyzed, classified into ideal and not ideal, and submitted to the chi-square test (α=0.05). Result Only 6.7% of the cast metal posts analyzed were satisfactorily fabricated. Conclusion Many prosthetic criteria are neglected during the manufacturing of cast metal post and cores, resulting in inadequate work that may compromise the longevity of restorative treatments.

Download Full-text

Prevalence evaluation of apical periodontitis and its relationship with endodontic and restorative treatment in a community in Southern Brazil

Brazilian Dental Science ◽

10.14295/bds.2020.v23i1.1807 ◽

2020 ◽

Vol 23 (1) ◽

Author(s):

Julia Machado Saporiti ◽

Andressa Gomes ◽

Melissa Feres Damian ◽

Nadia De Souza Ferreira

Keyword(s):

Root Canal ◽

Apical Periodontitis ◽

Endodontic Treatment ◽

Endodontically Treated Teeth ◽

Chi Square ◽

Root Canal Filling ◽

Restorative Treatment ◽

Anterior Teeth ◽

Chi Square Test

Objective: The aim of this study was evaluate radiographically prevalence of apical periodontitis (AP) in endodontically treated teeth (ETT) and relate with demographic factors, quality of endodontic treatment and coronal restoration. Material and methods: Data were collected from dental records wich contained full-mouth radiographic series. In ETT, arch, dental group and presence of AP were evaluated. Quality of root canal filling, presence and quality of coronal restoration and type of restorative material were also collected. Data were evaluated using descriptive statistics and Chi-square Test. Results: Of 70 patients included in the final sample, the majority were female (54.3%) and age ranged from 13 to 77 years (47.14 ± 13.18). Of 1,333 teeth evaluated, 73 (5.4%) had endodontic treatment, being the majority maxillary (74%) and anterior teeth (52.1%). Of teeth without endodontic treatment, 320 (25.4%) had AP. Failure rate was high (52.8%) and quality of root canal filling and coronal restoration were considered inadequate in majority cases (58.3% and 47.7%, respectively). Dental group had a statistically significant relationship with presence of AP in ETT, being more frequent in anterior teeth (p = 0.019). Conclusion: It was concluded that prevalence of AP in ETT was high and dental group was the factor that most influenced prevalence of AP in ETT.KeywordsApical periodontitis; Radiography; Root canal filling.

Download Full-text

Radiographic evaluation of the quality of root canal obturation of single-matched cone Gutta-percha root canal filling versus hot lateral technique

Saudi Endodontic Journal ◽

10.4103/1658-5984.132717 ◽

2014 ◽

Vol 4 (2) ◽

pp. 58 ◽

Cited By ~ 2

Author(s):

RandaSuleiman Obeidat ◽

Hassan Abdallah

Keyword(s):

Root Canal ◽

Radiographic Evaluation ◽

Root Canal Filling ◽

Root Canal Obturation ◽

Gutta Percha

Download Full-text

Healing of a tooth with an overinstrumented apex, extensive transportation and periapical lesion using a 5 mm calcium hydroxide apical plug: an 8-year follow-up report

Brazilian Dental Journal ◽

10.1590/s0103-64402012000500024 ◽

2012 ◽

Vol 23 (5) ◽

pp. 608-611

Author(s):

Ronaldo Araújo Souza ◽

Yara T. Corrêa Silva-Sousa ◽

Suely Colombo ◽

Maurício Lago ◽

Marco Antonio Hungaro Duarte ◽

...

Keyword(s):

Calcium Hydroxide ◽

Root Canal ◽

Apical Periodontitis ◽

Filling Material ◽

Root Canal Filling ◽

Apical Constriction ◽

Gutta Percha ◽

Open Apices ◽

Canal Transportation

Besides the risk of filling material extrusion throughout the apex, a satisfactory apical seal can be difficult to achieve in canals with open apices or iatrogenic enlargements of the apical constriction. These situations pose a challenge to root canal filling. This paper describes the root canal filling of a maxillary right canine with an overinstrumented apex, complete loss of the apical stop, extensive canal transportation and apical periodontitis. A 5 mm calcium hydroxide apical plug was placed before root canal filling. The plug was made by soaking paper points with saline, dipping the points in calcium hydroxide powder and then applying it to the apex several times, until a consistent apical plug was obtained. The canal was then irrigated with saline in order to remove any residual calcium hydroxide from the root canal walls, dried with paper points and obturated with an inverted #80 gutta-percha cone and zinc oxide-eugenol based sealer by the lateral condensation technique. An 8-year radiographic follow-up showed formation of mineralized tissue sealing the apical foramen, apical remodeling and no signs of apical periodontitis.

Download Full-text

Influence of Sealer Placement Technique on the Quality of Root Canal Filling by Lateral Compaction or Single Cone

Brazilian Dental Journal ◽

10.1590/0103-6440201302370 ◽

2014 ◽

Vol 25 (2) ◽

pp. 117-122 ◽

Cited By ~ 5

Author(s):

Adriana Simionatto Guinesi ◽

Gisele Faria ◽

Mario Tanomaru-Filho ◽

Idomeo Bonetti-Filho

Keyword(s):

Statistical Analysis ◽

Root Canal ◽

Lower Percentage ◽

Root Canal Filling ◽

Gutta Percha ◽

Single Cone ◽

Digital Microscope ◽

Placement Technique

The aim of this study was to evaluate the influence of the sealer placement technique on the quality of root canal filling using Lateral Compaction (LC) or Single Cone (SC). In order to do that, 60 mesial roots of mandibular first molars were prepared and divided into 2 groups (n=30), according to the filling technique: LC and SC. Each group was subdivided into 3 subgroups (n=10), according to the different sealer placement methods: A: Master gutta-percha (GP) cone; B: Lentulo spiral; C: File. The roots were sectioned at 2, 4 and 6 mm from the apex and photographed with the aid of a digital microscope. Then, areas of GP, endodontic sealer and voids were measured, and these data were subjected to statistical analysis. LC technique showed no statistically difference (p>0.05) in the percentage of GP area, sealer and voids between the subgroups at any of the three levels. After use of SC, higher percentages of sealer area were found at all levels (p<0.01) when the sealer was placed with a file. At 2 mm, higher percentage of void areas (p<0.05) was observed when the cone was used, lower percentage with K-file and the lowest percentage with Lentulo. At 4 mm, cone showed higher percentage of void areas (p<0.05). At 6 mm, there were no significant differences (p>0.05) between the three methods. Considering these results, using an instrument for sealer placement was important in the SC technique to reduce voids. Regarding LC, the sealer placement techniques provided similar results.

Download Full-text

Fate of 45Ca-labeled calcium hydroxide in a root canal filling paste embedded in rat subcutaneous tissues

Journal of Endodontics ◽

10.1016/s0099-2399(87)80094-8 ◽

1987 ◽

Vol 13 (5) ◽

pp. 220-223 ◽

Cited By ~ 13

Author(s):

Toshiyuki Kawakami ◽

Chihito Nakamura ◽

Hiromasa Hasegawa ◽

Sigeo Eda

Keyword(s):

Calcium Hydroxide ◽

Root Canal ◽

Root Canal Filling ◽

Subcutaneous Tissues

Download Full-text

Delayed tooth replantation following root canal filling with calcium hydroxide and MTA: Histomorphometric study in rats

Archives of Oral Biology ◽

10.1016/j.archoralbio.2015.02.002 ◽

2015 ◽

Vol 60 (9) ◽

pp. 1254-1262 ◽

Cited By ~ 6

Author(s):

Jônatas Caldeira Esteves ◽

Heloisa Fonseca Marão ◽

Pedro Ivo dos Santos Silva ◽

Wilson Roberto Poi ◽

Sônia Regina Panzarini ◽

...

Keyword(s):

Calcium Hydroxide ◽

Root Canal ◽

Root Canal Filling ◽

Histomorphometric Study ◽

Tooth Replantation

Download Full-text

Influence of calcium hydroxide points on the quality of intracanal dressing filling

Journal of Applied Oral Science ◽

10.1590/s1678-77572006000300014 ◽

2006 ◽

Vol 14 (3) ◽

pp. 219-223 ◽

Cited By ~ 2

Author(s):

Nicole de Mello Rahde ◽

José Antonio Poli Figueiredo ◽

Elias Pandonor Motcy Oliveira

Keyword(s):

Calcium Hydroxide ◽

Root Canal Filling ◽

Human Teeth ◽

Significance Level ◽

Root Canals ◽

Gutta Percha ◽

Group 2 ◽

Post Hoc

PURPOSE: The aim of this study was to evaluate, in vitro, the quality of calcium hydroxide [Ca(OH)2] paste filling (Ultracal, Ultradent) associated or not with Ca(OH)2-containing gutta-percha points (Calcium Hydroxide Plus PointsTM, Roeko) in curved root canals. MATERIAL AND METHODS: One hundred and twenty roots of extracted human teeth, randomly divided into three curvature ranges (mild - 0 to 14º; moderate - 15º to 29º; severe - >30º) were used. After chemomechanical preparation, the roots were assigned to 4 groups (n=30), according to the technique of intracanal dressing placement: group 1 - Ca(OH)2 paste was applied with a lentulo spiral; group 2 - Ca(OH)2 paste was applied with a lentulo spiral and a Ca(OH)2 point was inserted into the canal; group 3 - Ca(OH)2 paste was applied with a NavitipTM tip (supplied with Ultracal system); group 4 - Ca(OH)2 paste was applied with a NavitipTM tip and a Ca(OH)2 point was inserted into the canal. The roots were cleared and the quality of apical third filling was assessed by a calibrated experienced examiner. The specimens were examined under stereomicroscopy and scored 1 to 4 (i.e., from inadequate to complete root canal filling). The results were analyzed statistically by ANOVA and Duncan's post hoc test at 5% significance level. RESULTS: There were no statistically significant differences (p>0.05) among the curvature degrees in groups 1, 3 and 4. Severely curved roots in group 2 presented bordering significance (p=0.05). The groups that associated the use of Ca(OH)2 paste and points (2 and 4) showed better apical filling than the other groups, but this difference was statistically significant (p<0.001) only for roots with severe curvature. CONCLUSION: According to the results of this study, the curvature degree did not influence the quality of filling. The techniques that used Ca(OH)2-containing gutta-percha points yielded better filling of the apical third in roots with severe curvature.

Download Full-text