Guided Endodontic Access of Calcified Anterior Teeth

Tavares, Warley Luciano Fonseca; Viana, Ana Cecília Diniz; Machado, Vinícius de Carvalho; Henriques, Luiz Carlos Feitosa; Sobrinho, Antônio Paulino Ribeiro

doi:10.1016/j.joen.2018.04.014

Cited by 73 publications

(48 citation statements)

References 15 publications

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“…The canal was found at 12.5 mm with no deviation problems. The use of a thin drill (0.75 mm) is a must, especially in this region, to minimize microcraters and heating of the tooth, which is better than the use of the conventional drills used in past reports [ 28 ].…”

Section: Discussionmentioning

confidence: 99%

Guided Endodontic Treatment of Calcified Lower Incisors: A Case Report

et al. 2020

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A 52-year-old female patient was diagnosed with chronic periapical periodontitis associated with severely calcified lower central incisors. Radiographic examination revealed no visible root canal in the coronal-third of the root. After choosing the guided endodontic treatment, an intraoral scan (Trios, 3shape, Copenhagen, Denmark), in conjunction with a cone beam computed tomography (CBCT) scan, was taken in order to design and fabricate a printed guide. Virtual implant software was used to visualize the surgical access into the sclerosed root canals. After locating the canals, the guide was removed, and the teeth were treated under a rubber dam. The guided approach allows predictable, efficient endodontic treatment of teeth presenting calcified canals, with minimal removal of sound dentine and less risk of root perforations.

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Section: Discussionmentioning

confidence: 99%

Guided Endodontic Treatment of Calcified Lower Incisors: A Case Report

et al. 2020

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“…The use of CBCT in dental care is increasing and 3D printers are becoming popularized, leading to increasing attempts to use 3D printed guides in endodontic treatments 13–18 . These attempts have included producing a guide by 3D printing a tooth model for the RCT of an anomalous maxillary right central incisor, 19 endodontic guides for anterior teeth with severely obliterated root canal systems, 14 and an endodontic technique for root canal localization in mandibular incisors 15 .…”

Section: Discussionmentioning

confidence: 99%

Access opening guide produced using a 3D printer (AOG‐3DP) as an effective tool in difficult cases for dental students

Choi

Jeon

Cho

et al. 2021

Journal of Dental Education

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Objectives The aim of this study was to determine the effectiveness of using an access opening guide in teaching ideal access opening shape and preventing excessive tooth loss, with a focus on predoctoral dental students. Methods Ninety teeth that were mounted in a box just below the level of the cementoenamel junction using tray resin were randomly divided into two study groups. An access opening guide produced using a 3D printer (AOG‐3DP) was designed using cone‐beam computed tomography (CBCT). The AOG‐3DP was applied in the test groups, while no aid was used in the control group. Access preparations in both groups performed by predoctoral dental students were scanned using CBCT to detect overpreparation. The preparation time and access cavity volume were evaluated. Results The mean times required for achieving access opening were 327.2 and 97.4 s in the control and AOG‐3DP groups, respectively, for premolars, and 547.4 and 104.5 s for molars. The mean volumes for premolars and molars differed from the ideal cavities by 38.1 and 72.2 mm3, respectively, in the control group, and by −2.0 and −8.7 mm3 the AOG‐3DP group. Conclusions Using the AOG‐3DP significantly reduced the access opening time for premolars and molars. However, there is a limitation in that CBCT DICOM images must be converted to stereolithographic .stl files in order to be printed via 3D technology. This requires additional preclinical treatment time for imaging and subsequent printing. It could be considered that this can be a useful method in difficult cases.

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“…The percentage of file fractures was maximum in the age group of >60 years in the present study, which can be attributed to the increased secondary dentin formation along with reduced pulp space and increased pulpal calcifications. [ 13 ] Moreover, the past literature indicates the need for endodontic microscopes[ 14 ] and careful instrumentation techniques[ 15 ] to reduce endodontic mishaps and to increase the success rate of root canal treatments in older age groups. Various factors such as constraints in time and nonavailability of increased magnification tools and endodontic microscopes, could have increased the incidence of instrument fracture in the older age group in the present study.…”

Section: Discussionmentioning

confidence: 99%

The incidence of nickel-titanium endodontic hand file fractures: A 7-year retrospective study in a tertiary care hospital

2020

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Aim: The present retrospective cross-sectional study aims to evaluate the incidence and factors associated with nickel-titanium hand file fractures in root canal-treated teeth in a tertiary care hospital of western India. Methodology: The diagnostic records of intraoral periapical (IOPA) radiographs were analyzed to check for file fractures in the root canal-treated teeth. As a part of standardized departmental protocol, Hand ProTaper Universal file system (Dentsply, India) was used for chemomechanical preparation for root canal treatment. The file fractures were analyzed with reference to age group, type of teeth, curvature of the canal, site of file fracture in the canal, length of file fracture, level of file fracture, distance of the file fracture from the apex, and obturation status of the file-fractured tooth. Chi-square test was applied to assess the significance difference between the tested groups. Results: A total of 19,810 IOPA X-rays were screened and 2728 root canal-treated teeth were found and of these 2728 cases, 109 file-fractured teeth were observed. Conclusion: The total incidence of file fractures was 3.9/100 root canal-treated cases, and mandibular molars with severely curved canals (>25°) had shown the maximum incidence of file fractures.

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Guided Endodontic Access of Calcified Anterior Teeth

Cited by 73 publications

References 15 publications

Guided Endodontic Treatment of Calcified Lower Incisors: A Case Report

Guided Endodontic Treatment of Calcified Lower Incisors: A Case Report

Access opening guide produced using a 3D printer (AOG‐3DP) as an effective tool in difficult cases for dental students

The incidence of nickel-titanium endodontic hand file fractures: A 7-year retrospective study in a tertiary care hospital

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