Residual thickness of root in first maxillary premolars with post space preparation

Raiden, Guillermo; Costa, Lucia Cortes da; Koss, Silvina; Hernández, Juan Luis García; Aceñolaza, Verónica

doi:10.1016/s0099-2399(99)80291-x

Cited by 25 publications

(14 citation statements)

References 11 publications

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“…Anyway this kind of technique, even though makes it easier to detect the depth of the post-space, is not able to record properly the root channel anatomy. Considering the better features of an anatomic endodontic post, such as the root dentin preservation (8,20,(29)(30)(31)(32)(33), reduced cement layer (34)(35)(36)(37), minor bubbles formation (38), increased post retention (7,8,39,40), and fracture resistance (41,42), in this study the possibility of producing an anatomic endodontic post through the use of an IOS has been investigated. To the best of our knowledge no studies have yet investigated the IOS capability to detect the post-space for the production of anatomic posts.…”

Section: Discussionmentioning

confidence: 99%

In Vitro Evaluation of the Post-Space Depth Reading With an Intraoral Scanner (Ios) Compared to a Traditional Silicon Impression

Pinto

Arcuri

Carosi

et al. 2017

ORL

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SUMMARYObjectives. The aim of the study was to assess the depth and quality of the post-space reading, using an IOS without scanpost, compared to a traditional silicon technique. Methods. Six extracted bicuspids were decoronated and endodontically treated. After having prepared the space for the posts, a structure in pink acrylic resin was created with two resin elements. At the center of the structure one sample was put at a time. Digital and traditional impressions were taken for each sample. Digital impressions were developed through the Computer-aided design (CAD) software in order to integrate the scanner results into a three-dimensional grid to make the measurements. A K-file was used to measure the length of the postspace of each sample obtained through the traditional silicon impression and subsequently the measurement results were reported on a millimeter gauge. Furthermore, an assessment of the width of the entrances of the post-spaces was carried out. Results. The mean reading depth discrepancy expressed in percentages (19.58%) indicates that the digital impression with current technologies fails to impress clearly the post-space. Standard deviation of the data expressed in percentage is 13.89, suggesting that the values were not similar to each other. In two cases the digital technique has achieved less than 10% difference compared to the traditional technique, but there have been also cases in which the variation in depth has reached almost 40%. The samples that showed the minor discrepancy between the two techniques expressed the widest post-space entrance. Conclusions. In this in vitro study, the application of the IOS for the post-space reading in order to deliver an anatomic post has been proven to be still not reliable, as there are still depth reading limitations for the narrow root channels. In fact, in this type of channels it is difficult to reach with the light beam of the IOS the deepest areas of the post-space, with a consequent incomplete post-space reading.

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Section: Discussionmentioning

confidence: 99%

In Vitro Evaluation of the Post-Space Depth Reading With an Intraoral Scanner (Ios) Compared to a Traditional Silicon Impression

Pinto

Arcuri

Carosi

et al. 2017

ORL

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“…First, the most important advantage is the preservation of tooth structure. [42][43][44][45][46] A modified fiber post adapts to the root canal rather than adapting the root canal to the post, usually by enlarging it. This is a significant advantage as after endodontic treatment root canals are usually oval-shaped rather than perfectly round.…”

Section: Discussionmentioning

confidence: 99%

The effect of custom adaptation and span-diameter ratio on the flexural properties of fiber-reinforced composite posts

Grande

Plotino

Ioppolo³

et al. 2009

Journal of Dentistry

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“…Morphologic, tapered, and doublestepped posts preserve dentin in the apical region of the post-space preparation, reducing the risks for root perforation (83). This is important for teeth with small tapered roots, such as maxillary lateral incisors and mandibular incisors (84).…”

Section: Controllable Risk Factorsmentioning

confidence: 99%

Identifying and Reducing Risks for Potential Fractures in Endodontically Treated Teeth

Wei-rong

Smales

2010

Journal of Endodontics

378

277

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Residual thickness of root in first maxillary premolars with post space preparation

Cited by 25 publications

References 11 publications

In Vitro Evaluation of the Post-Space Depth Reading With an Intraoral Scanner (Ios) Compared to a Traditional Silicon Impression

In Vitro Evaluation of the Post-Space Depth Reading With an Intraoral Scanner (Ios) Compared to a Traditional Silicon Impression

The effect of custom adaptation and span-diameter ratio on the flexural properties of fiber-reinforced composite posts

Identifying and Reducing Risks for Potential Fractures in Endodontically Treated Teeth

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