Nanodiamond–Gutta Percha Composite Biomaterials for Root Canal Therapy

Intentional or unintentional pulp exposure of cat canines can lead to periapical disease, osteomyelitis, and oral pain. Root canal therapy (RCT) allows the retention of cat canines with pulp exposure by removing the infected pulp and replacing it with an inert material. This study used MTA Fillapex™ as a root canal sealant with gutta percha single cone obturation in 37 cats (50 canine teeth). Roots were classified as “successful,” “no evidence of failure (NEF),” or “failed” at 6-month radiographic reviews. Therapy was considered “successful” if a preoperative periapical lucency had healed or not formed after treatment and any preoperative external inflammatory root resorption (EIRR) had stabilized without progression. Therapy was categorized as “NEF” if a periapical lucency had remained the same or decreased in size but not completely resolved and any preoperative EIRR had stabilized without progression. “Failed” if a periapical lucency had occurred or increased in size posttreatment or if EIRR had developed or progressed posttreatment. Thirty-two canine teeth (64%) were classified as “successful,” 14 canine teeth (28%) were classified as “NEF,” and 4 canine teeth (8%) were classified as “failed”. The study concluded that RCT using MTA Fillapex as a root canal sealant is a suitable endodontic treatment for fractured cat canines, especially those that are periodontally or endodontically challenged.

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A matched irrigation and obturation strategy for root canal therapy

Scientific Reports ◽

10.1038/s41598-021-83849-y ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Rafaela Fernandes Zancan ◽

Mohammed Hadis ◽

David Burgess ◽

Zhenyu Jason Zhang ◽

Alessandro Di Maio ◽

...

Keyword(s):

Sodium Hypochlorite ◽

Root Canal ◽

Bacterial Load ◽

Confocal Laser ◽

Root Canal Therapy ◽

Tooth Structure ◽

Gutta Percha ◽

Inorganic Matter ◽

Hydraulic Calcium Silicate Cement ◽

Root Canal Sealers

AbstractIn root canal therapy, irrigating solutions are employed to eliminate the bacterial load and also prepare dentin for sealer interaction. The aim of this research was to assess how irrigating solutions employed on their own or in sequence affected the tooth structure. The best way to prepare the tooth for obturation using hydraulic calcium silicate cement (HCSC) sealers and gutta-percha, thus guiding clinicians on a matched irrigation-obturation strategy for optimized root canal treatment was investigated. The effect of irrigating solutions on dentine was investigated by assessing changes in dentin microhardness, ultrastructure and mineral content, organic/inorganic matter, surface roughness and Young’s modulus. The interaction of four root canal sealers with the dentin was analysed by assessing the changes in microhardness of the dentin after sealer placement and also the sealer to dentin interface by scanning electron and confocal laser microscopy. The irrigating solutions damaged the dentin irreversibly both when used on their own and in combination. The best sequence involved sodium hypochlorite followed by chelator and a final rinse with sodium hypochlorite and obturation using HCSC sealers that enabled the restoration of dentin properties. The HCSC sealers did not rely on chelator irrigating solutions for a good material adaptation to dentin.

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Assessment of age and gender distribution in root canal failure cases with two different tapered gutta percha obturation techniques

International Journal of Pharmaceutical Research ◽

10.31838/ijpr/2020.12.02.0258 ◽

2020 ◽

Vol 12 (02) ◽

Keyword(s):

Root Canal ◽

Age And Gender ◽

Gender Distribution ◽

Gutta Percha ◽

And Gender

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FP Core Carrier Technique: Thermoplasticized Gutta-percha Root Canal Obturation Technique Using Polypropylene Core

The Bulletin of Tokyo Dental College ◽

10.2209/tdcpublication.51.213 ◽

2010 ◽

Vol 51 (4) ◽

pp. 213-220 ◽

Cited By ~ 4

Author(s):

Hiroshi Kato ◽

Kan-Ichi Nakagawa

Keyword(s):

Root Canal ◽

Root Canal Obturation ◽

Gutta Percha

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Investigation of the Impact of Endodontic Therapy on Survival among Dialysis Patients in Taiwan: A Nationwide Population-Based Cohort Study

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18010326 ◽

2021 ◽

Vol 18 (1) ◽

pp. 326

Author(s):

Chih-Chien Chiu ◽

Ya-Chieh Chang ◽

Ren-Yeong Huang ◽

Jenq-Shyong Chan ◽

Chi-Hsiang Chung ◽

...

Keyword(s):

Chronic Kidney Disease ◽

Kidney Disease ◽

Renal Disease ◽

End Stage Renal Disease ◽

Root Canal ◽

Dialysis Patients ◽

Root Canal Therapy ◽

Risk Of Death ◽

Stage Renal Disease ◽

End Stage

Objectives Dental problems occur widely in patients with chronic kidney disease (CKD) and may increase comorbidities. Root canal therapy (RCT) is a common procedure for advanced decayed caries with pulp inflammation and root canals. However, end-stage renal disease (ESRD) patients are considered to have a higher risk of potentially life-threatening infections after treatment and might fail to receive satisfactory dental care such as RCT. We investigated whether appropriate intervention for dental problems had a potential impact among dialysis patients. Design Men and women who began maintenance dialysis (hemodialysis or peritoneal dialysis) between January 1, 2000, and December 31, 2015, in Taiwan (total 12,454 patients) were enrolled in this study. Participants were followed up from the first reported dialysis date to the date of death or end of dialysis by December 31, 2015. Setting Data collection was conducted in Taiwan. Results A total of 2633 and 9821 patients were classified into the RCT and non-RCT groups, respectively. From the data of Taiwan’s National Health Insurance, a total of 5,092,734 teeth received RCT from 2000 to 2015. Then, a total of 12,454 patients were followed within the 16 years, and 4030 patients passed away. The results showed that members of the non-RCT group (34.93%) had a higher mortality rate than those of the RCT group (22.79%; p = 0.001). The multivariate-adjusted hazard ratio for the risk of death was 0.69 (RCT vs. non-RCT; p = 0.001). Conclusions This study suggested that patients who had received RCT had a relatively lower risk of death among dialysis patients. Infectious diseases had a significant role in mortality among dialysis patients with non-RCT. Appropriate interventions for dental problems may increase survival among dialysis patients. Abbreviations: CKD = chronic kidney disease, ESRD = end-stage renal disease, RCT = root canal therapy.

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BiodentineTM Full Pulpotomy in Mature Permanent Teeth with Irreversible Pulpitis and Apical Periodontitis

Healthcare ◽

10.3390/healthcare9060720 ◽

2021 ◽

Vol 9 (6) ◽

pp. 720

Author(s):

Xuan Vinh Tran ◽

Lan Thi Quynh Ngo ◽

Tchilalo Boukpessi

Keyword(s):

Root Canal ◽

Periodontal Ligament ◽

Clinical Signs ◽

Apical Periodontitis ◽

Permanent Teeth ◽

Definitive Treatment ◽

Capping Agent ◽

Root Canal Therapy ◽

Pulp Capping ◽

Irreversible Pulpitis

Vital pulp therapy, including direct pulp capping and partial and full pulpotomy, is primarily indicated for immature or mature permanent teeth with reversible pulpitis. Mature permanent teeth with irreversible pulpitis are frequently treated with root canal therapy. This report presents two cases of full pulpotomy using BiodentineTM in mature permanent teeth with irreversible pulpitis and acute apical periodontitis. The periapical radiograph illustrated a deep carious lesion extended to the pulp with apical radiolucency lesion or widened periodontal ligament space. Full pulpotomy with a tricalcium silicate-based cement was chosen as the definitive treatment. After decayed tissue excavation under a rubber dam, the exposed pulp tissue was amputated to the level of the canal orifice with a new sterile bur. BiodentineTM was applied as the pulp capping agent after hemostasis was obtained and for temporary restoration. The clinical signs disappeared quickly after the treatment. After one month, the coronal part of the temporary restoration was removed, and a composite resin was placed over the capping agent as a final restoration. At two-year follow-ups, the teeth were asymptomatic. Radiographs showed healing of the periapical lesion and periodontal ligament. BiodentineTM full pulpotomy of mature permanent teeth with irreversible pulpitis and apical periodontitis can be an alternative option to root canal therapy.

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