Guided access cavity preparation using cone‐beam computed tomography and optical surface scans – an <i>ex vivo</i> study

Buchgreitz, Jørgen; Buchgreitz, M.; Mortensen, Diana; Bjørndal, Lars

doi:10.1111/iej.12516

Cited by 105 publications

(128 citation statements)

References 16 publications

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“…Buchgreitz et al . () found the mean deviation of the access cavities to be lower than the 0.7‐mm threshold defined by the radius of the bur plus the radius of the root canal. Zehnder et al .…”

Section: Review Of Endodontic Applicationsmentioning

confidence: 94%

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Endodontic applications of 3D printing

Anderson¹,

Wealleans²,

Ray³

2018

Int Endodontic J

139

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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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Section: Review Of Endodontic Applicationsmentioning

confidence: 94%

“…In ex vivo investigations of accuracy, Buchgreitz et al . (), Zehnder et al . () and Connert et al .…”

Section: Review Of Endodontic Applicationsmentioning

confidence: 96%

Endodontic applications of 3D printing

Anderson¹,

Wealleans²,

Ray³

2018

Int Endodontic J

139

View full text Add to dashboard Cite

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“…Additionally, a commercially available bur was used instead of a specially adapted bur (Buchgreitz et al . , Connert et al . , ).…”

Section: Discussionmentioning

confidence: 99%

“…By using a 3D‐printed guide, the chances of iatrogenic damage to the root are reduced and the likelihood of finding the root canal is high, whilst also reducing treatment time (Buchgreitz et al . , Krastl et al . , van der Meer et al .…”

Section: Introductionmentioning

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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“…They found a 0.99 mm horizontal deviation (ranging from 0.0 to 6.5 mm) at the level of the implant platform of the osseointegrated implants, a 1.24 mm horizontal deflection (ranging from 0.0 to 6.9 mm) at the osseointegrated implant apex and an average angle deviation of 3.81° (ranging from 0.0° to 24.0°) to the longitudinal osseointegrated implant axis . Buchgreitz et al evaluated ex vivo the accuracy of a preparation procedure planned for teeth with root canal obliteration using a guide rail concept based on CBCT scan merged with an optical surface scan and the mean distance between the drill path and the target was significantly lower than 0.7 mm and Zehnder et al concluded that deviations of planned and prepared access cavities were low with means ranging from 0.16 to 0.21 mm for different aspects at the base of the bur and 0.17–0.47 mm at the tip of the bur and the mean of angle deviation was 1.81° . In the field of endodontics, the use of guided splints assisted by CBCT has been documented for treating dens invaginatus and teeth with root canal calcification and apical pathology; this lack of precision can make it difficult to locate the root canals and may lead to unexpected complications.…”

Section: Discussionmentioning

confidence: 99%

Endodontic treatment of dens evaginatus by performing a splint guided access cavity

Mena-Álvarez

Rico-Romano

Lobo-Galindo

et al. 2017

J Esthet Restor Dent

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Guided access cavity preparation using cone‐beam computed tomography and optical surface scans – an ex vivo study

Abstract: The combined use of CBCT and optical scans for the precise construction of a guide rail led to a drill path with a precision below a risk threshold. The present technique may be a valuable tool for the negotiation of partial or complete pulp canal obliteration.

Cited by 105 publications

References 16 publications

Endodontic applications of 3D printing

Endodontic applications of 3D printing

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

Endodontic treatment of dens evaginatus by performing a splint guided access cavity

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