Novel navigation technique for the endodontic treatment of a molar with pulp canal calcification and apical pathology

Anderson J, Wealleans J, Ray J. Endodontic applications of 3D printing. International Endodontic Journal.Computer-aided design (CAD) and computer-aided manufacturing (CAM) technologies can leverage cone beam computed tomography data for production of objects used in surgical and nonsurgical endodontics and in educational settings. The aim of this article was to review all current applications of 3D printing in endodontics and to speculate upon future directions for research and clinical use within the specialty. A literature search of PubMed, Ovid and Scopus was conducted using the following terms: stereolithography, 3D printing, computer aided rapid prototyping, surgical guide, guided endodontic surgery, guided endodontic access, additive manufacturing, rapid prototyping, autotransplantation rapid prototyping, CAD, CAM. Inclusion criteria were articles in the English language documenting endodontic applications of 3D printing. Fifty-one articles met inclusion criteria and were utilized. The endodontic literature on 3D printing is generally limited to case reports and pre-clinical studies. Documented solutions to endodontic challenges include: guided access with pulp canal obliteration, applications in autotransplantation, pre-surgical planning and educational modelling and accurate location of osteotomy perforation sites. Acquisition of technical expertise and equipment within endodontic practices present formidable obstacles to widespread deployment within the endodontic specialty. As knowledge advances, endodontic postgraduate programmes should consider implementing 3D printing into their curriculums. Future research directions should include clinical outcomes assessments of treatments employing 3D printed objects.

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“…), a mandibular molar (Shi et al . ), type V dens evaginatus (Mena‐Álvarez et al . ) and obliterated mandibular incisors (Connert et al .…”

Section: Review Of Endodontic Applicationsmentioning

confidence: 99%

Endodontic applications of 3D printing

Anderson¹,

Wealleans²,

Ray³

2018

Int Endodontic J

139

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“…3D printing technology could achieve precise design, positioning, and good communication before the operation. Therefore, this technology has been applied in a clinic more extensively to achieve good treatment outcomes [13,14], besides the accuracy and safety for 3D printed template have been proved [15,16]. This research was aimed to design the 3D printed template for endodontic cavities and explore the clinical significance of 3D printed template in endodontics.…”

Section: Introductionmentioning

confidence: 99%

Impacts of contracted endodontic cavities compared to traditional endodontic cavities in premolars

Xia

Wei-dong

et al. 2020

BMC Oral Health

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Background This study aims to compare the percentage of dentin removed, instrumentation efficacy, root canal filling and load at fracture between contracted endodontic cavities, and traditional endodontic cavities on root canal therapy in premolars. Methods Forty extracted intact human first premolars were imaged with micro-CT and randomly assigned to the contracted endodontic cavity (CEC) or traditional endodontic cavity (TEC) groups. CEC was prepared with the aid of a 3D-printed template, canals were prepared with a 0.04 taper M-Two rotary instrument, and cavities were restored with resin. Specimens were loaded to fracture in an Instron Universal Testing Machine after a fatigue phase. The data were analyzed by the independent samples T test and Mann-Whitney U test, appropriate post hoc tests. Results In the premolars tested in vitro, the percentage of dentin removed in the premolars with two dental roots in the CEC group (3.85% ± 0.42%) was significantly smaller (P < 0.05) than in the TEC group (4.94% ± 0.5%). The untouched canal wall (UCW) after instrumentation for TECs (16.43% ± 6.56%) was significantly lower (P < .05) than the UCW (24.42% ± 9.19%) for CECs in single-rooted premolars. No significant differences were observed in the increased canal volume and surface areas in premolars between the TEC and CEC groups (P > 0.05). CECs conserved coronal dentin in premolars with two dental roots but no impact on the instrument efficacy. There were no differences between the CEC groups and the TEC groups in the percentage of filling material and voids (P > 0.05). In addition, the mean load at failure of premolars did not significantly differ between the CEC and TEC groups and there was no significant difference in the type of fracture (P > 0.05). Conclusion The results of this study suggest that CEC could not improve the fracture resistance of the endodontically treated premolars. The instrumentation efficacy and the percentage of filling material did not significantly differ between CECs and TECs in premolars.

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“…, Shi et al . ), dens evaginatus (Mena‐Alvarez et al . ) and even during apicoectomy (Strbac et al .…”

Section: Discussionmentioning

confidence: 99%

“…Krastl et al 2016, van der Meer et al 2016, Connert et al 2018, Shi et al 2018, dens evaginatus(Mena-Alvarez et al 2017) and even during apicoectomy(Strbac et al 2017, Ahn et al 2018.The concept of Guided Endodontics was first described byKrastl et al (2016) who introduced the term 'Guided Endodontics' and used it on a clinical case of a maxillary central incisor with PCO and apical periodontitis. Later,van der Meer et al (2016) used this method for the treatment of maxillary anterior teeth with PCO on three patients.…”

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confidence: 99%

Microguided Endodontics: a case report of a maxillary lateral incisor with pulp canal obliteration and apical periodontitis

et al. 2018

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Aim To describe a minimally invasive method to create a 3D‐printed guide to gain access to obliterated root canals on the basis of CBCT data. Summary A 85‐year‐old female ASA III was referred for root canal treatment of tooth 22. Clinically, there were no complaints, no percussion pain or sinus tract. Radiologically, the tooth had an obliterated canal with an apical radiolucency. The tooth was diagnosed with asymptomatic apical periodontitis. Microguided Endodontic treatment was performed with the help of a 3D‐printed guide. The root canal was localized initially with the aid of the 3D‐printed guide using a round carbide bur with a head diameter of 0.8 mm. Then, the canal was shaped and cleaned using mechanical rotary files under copious irrigation with 5% NaOCl, 17% EDTA and passive ultrasonic activation. A completely healed apical area of tooth 22 was visible after 6 months on periapical radiographs and small field of view CBCT. Key learning points Using the Microguided Endodontics concept, a minimally invasive access was achieved up to the middle of the root, in a maxillary lateral incisor with pulp canal obliteration (PCO) and apical periodontitis. This technique is a valuable tool for the negotiation of PCO, reducing chair time and risk of iatrogenic damage to the root.

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Novel navigation technique for the endodontic treatment of a molar with pulp canal calcification and apical pathology

Cited by 35 publications

References 18 publications

Endodontic applications of 3D printing

Endodontic applications of 3D printing

Impacts of contracted endodontic cavities compared to traditional endodontic cavities in premolars

Microguided Endodontics: a case report of a maxillary lateral incisor with pulp canal obliteration and apical periodontitis

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