Three-dimensional positional accuracy of intraoral and laboratory implant scan bodies

Tan, Janice Zhi Hui; Tan, Ming Yi; Toh, Yoong Liang See; Wong, Kuan Yee; Tan, Kong-Bing

doi:10.1016/j.prosdent.2020.09.057

Cited by 12 publications

(32 citation statements)

References 12 publications

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“…3 PEEK is advantageous in terms of light reflection, which is a shortcoming of Ti 3,5,6 ; yet it may undergo changes when exposed to thermal processes. [7][8][9] In addition, possible alterations of the base due to repeated use or sterilization might affect a scan's accuracy due to displacement of the SB. 5,10 Regardless of the material it is fabricated from, a SB needs to be tightened onto the implant before data acquisition.…”

Section: Introductionmentioning

confidence: 99%

“…Effect of different torque values on buccolingual displacement has also been reported. 15 Considering that torque values are not commonly provided by the manufacturers 7 and hand tightening is inconsistent, 16,17 clinicians may benefit from studies on potential linear displacements of SBs when tightened under different torque values. The authors are aware of only two studies that investigated the effect of SB displacement depending on torque value.…”

Section: Introductionmentioning

confidence: 99%

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Effect of material type, torque value, and sterilization on linear displacements of a scan body: An in vitro study

Diker

Terzioğlu

Gouveia

et al. 2023

Clin Implant Dent Rel Res

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Background: There is limited knowledge on the effect of scan body (SB) material type, torque value, and sterilization on linear displacements of implant SBs.Purpose: To evaluate the effect of material type, torque value, and sterilization on linear displacements of SBs during screw tightening by using digital image correlation (DIC) analysis.Materials and Methods: One polyetheretherketone (PEEK, Zfx Intraoral Scan Body) and one titanium SB (Ti, MPS Zimmer Scanbody R1410) were tightened with 5 Ncm torque on two implants (Zimmer TSV ⌀4.7 mm) by using a digital torque limiting device. SBs' initial spatial positions relative to the implants were recorded by using 3D DIC technique. Measurements were repeated after initially increasing torque value to 10 Ncm and then to 15 Ncm, and these steps were repeated for a total of 10 PEEK and 10 Ti SBs on both implants (n = 20). All SBs were then sterilized 25 times by using an autoclave (STATIM 5000 S G4) according to manufacturer's rec-

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of material type, torque value, and sterilization on linear displacements of a scan body: An in vitro study

Diker

Terzioğlu

Gouveia

et al. 2023

Clin Implant Dent Rel Res

View full text Add to dashboard Cite

show abstract

“…When comparing the differences according to the scan body materials in this study, the titanium scan body showed a better trueness value than the PEEK scan body. To avoid possible interferences from scan body shape 20 , 21 , PEEK and titanium scan bodies from the same manufacturer were selected in this study. In this way, we tried to evaluate the independent effect of scan body materials on scan data accuracy.…”

Section: Discussionmentioning

confidence: 99%

“…Another study reported worse accuracy in inclined implants 14 , and others have reported no significant difference 6 , 7 , 15 – 18 . Furthermore, the scan body design can affect the accuracy of digital implant impressions 10 , 19 – 21 . Various types of scan bodies developed by different manufacturers are being used, and recently, multi-purpose scan bodies made of biocompatible titanium have been introduced as a healing abutment 4 .…”

Section: Introductionmentioning

confidence: 99%

Trueness of digital implant impressions based on implant angulation and scan body materials

Lee

Bae

Lee

2021

Sci Rep

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Effects of implant angulation on digital implant impression accuracy remain controversial. Therefore, this in vitro study aimed to compare the digital implant impression trueness among models with different implant angulations and scan body materials. Six partially edentulous mandibular models with dental implants on the right second premolar and second molar areas were categorized according to the implant angulation of the distal implant (parallel, or 15° mesially or lingually tilted compared to the mesial implant) and scan body materials (polyetheretherketone or titanium). After scanning each model with intraoral scanners, the root mean square and within-tolerance values were calculated with respect to the reference, and nonparametric statistical tests were performed (α = .05). Scan data from models with the mesially tilted distal implant showed better trueness than the corresponding parallel and lingually tilted groups in terms of root mean square values (p < .017). The root mean square value in the titanium scan body group was lower than that in the polyetheretherketone scan body group (p < .001). However, the percentage within a tolerance of ± .1 mm was higher in the polyetheretherketone scan body group than in the titanium scan body group (p = .001). Intraoral scan data of models where the terminal implant was mesially tilted showed better trueness.

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“…Limited published data is available to determine the optimal implant scan body geometry and material for maximizing the scanning accuracy of intraoral digital scans involving single or multiple implants. [58][59][60][61][62][63][64][65] Different scan body designs have been tested aiming to simplify the digitizing procedures and to increase intraoral scanning accuracy. 48,64,65 However, the restricted clinical data does not support a systematic recommendation for selecting an implant scan body design.…”

Section: Implant Scan Bodiesmentioning

confidence: 99%

A guide for maximizing the accuracy of intraoral digital scans: Part 2—Patient factors

Revilla‐León

Kois

2023

J Esthet Restor Dent

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Objectives: To describe the factors related to patient intraoral conditions that impact the scanning accuracy of intraoral scanners (IOSs). A new classification for these influencing factors is proposed to facilitate dental professionals' decision-making and maximize the accuracy and reliability of intraoral digital scans.Overview: Variables related to intraoral conditions of the patient that can influence the scanning accuracy of IOSs include tooth type, presence of interdental spaces, arch width variations, palate characteristics, wetness, existing restorations, characteristics of the surface being digitized, edentulous areas, interimplant distance, position, angulation, and depth of existing implants, and implant scan body selection. Conclusions:The knowledge and understanding of the patient's intraoral conditions that can impact the scanning accuracy of IOSs is a fundamental element for maximizing the accuracy of IOSs.

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Three-dimensional positional accuracy of intraoral and laboratory implant scan bodies

Cited by 12 publications

References 12 publications

Effect of material type, torque value, and sterilization on linear displacements of a scan body: An in vitro study

Effect of material type, torque value, and sterilization on linear displacements of a scan body: An in vitro study

Trueness of digital implant impressions based on implant angulation and scan body materials

A guide for maximizing the accuracy of intraoral digital scans: Part 2—Patient factors

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