Flexibility of resin splint systems for traumatized teeth

Park, Jin-Hong; Shin, Joo-Hee; Ryu, Jae Jun; Lee, Jeong-Yol; Shin, Sang Wan

doi:10.4047/jkap.2017.55.4.389

Cited by 2 publications

(5 citation statements)

References 12 publications

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“…Besides polyether, the new addition-type silicone provides a recovery phase of 92%, which is similar to that obtained in a human study (~90%) [6]. In this scoping review, majority of PDL simulators were composed of silicone materials, except for the articles that advocate plastic models with the screw loosening method [26,28,29]. In the absence of a simulated PDL, the final mobility achieved was an imitation of traumatic appearance with damaged PDL.…”

Section: Discussionsupporting

confidence: 64%

“…Readily available artificial plastic models using screw loosening to increase tooth mobility was also described [28,29]. One of them reported being able to achieve only 1 mm horizontal mobility at the incisal edge without any specific degree of mobility after loosening the screw for five full turns [28].…”

Section: Resultsmentioning

confidence: 99%

“…One of them reported being able to achieve only 1 mm horizontal mobility at the incisal edge without any specific degree of mobility after loosening the screw for five full turns [28]. In contrast, another group of researchers did not specify the number of turns to unscrew as long as PTV Degree III was obtained [29]. PDL simulator and CRO application were not mentioned in their study.…”

Section: Resultsmentioning

confidence: 99%

“…The crown-to-root ratio (CRR) could also be an important factor in determining the final degrees of mobility; however, this value was not examined in these studies, except for one that claimed a significant difference between CRR and the different values of simulated bone loss [32]. Despite the inconsistency, human teeth are favoured by many researchers as they are readily available, inexpensive in an extensive Combination of socket enlargement and screw loosening Sterzenbach et al [31] Alveolar bone loss simulation Soares et al [34] Alveolar bone loss simulation Screw loosening Hassan et al [28] Socket enlargement and alveolar bone loss simulation Zhu et al [27] 2016 2017 Shirako et al [26] Socket enlargement and screw loosening Park et al [29] Screw loosening Alveolar bone loss simulation Naumann et al [32] 2018 2019 Nagayama et al [30] Alveolar bone loss simulation collection and able to obtain better material adherence to the enamel surface. Standardizing the geometry of the roots to provide a uniform PDL layer can further increase the accuracy in tooth deflection [24,41].…”

Section: Discussionmentioning

confidence: 99%

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Tooth Mobility Reproduction in Dental Material Research: A Scoping Review

Ang¹,

Razali²,

Yahaya³

2020

TODENTJ

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Background: Introducing tooth mobility simulation in laboratory studies can provide results with high accuracy and predictability. Objectives: This study aims to review in vitro methodologies replicating tooth mobility and provide a recommended approach for future laboratory models. Methods: Databases, such as PubMed, Cochrane Database of Systematic Review, BioMed Central and Chinese databases are searched, and twelve articles are included in the final review. Results: Simulation methods of tooth mobility involving socket enlargement, screw loosening, alveolar bone loss simulation and a combination approach are identified from the extracted data. The materials used in preparing artificial teeth, artificial sockets and periodontal ligament simulator are discussed with a focus on their limitations. The achieved degrees of mobility and the presence of the centre of rotation are also evaluated. A timeline of the review articles is constructed to understand the trend of the preferred methods in tooth mobility simulation. Conclusion: Future in vitro investigations can achieve clinical reliability, particularly for materials tested in the field of dental traumatology and periodontology, by recognising the importance of incorporating tooth mobility in laboratory studies. Improvised methods are proposed to ensure that potential laboratory models can resemble the actual oral environment.

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Section: Discussionsupporting

confidence: 64%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Tooth Mobility Reproduction in Dental Material Research: A Scoping Review

Ang¹,

Razali²,

Yahaya³

2020

TODENTJ

View full text Add to dashboard Cite

show abstract

“…However, this has unpredictable and irreproducible outcomes [ 3 ]. This is also true for the screw loosening technique, which adjusts tooth mobility by loosening screws that hold the tooth in its socket [ 15 , 16 ]. These current models are complex to manufacture and restricted to the simulation of anatomical areas with enough interradicular space.…”

Section: Introductionmentioning

confidence: 99%

A new CAD/CAM tooth mobility simulating model for dental in vitro investigations

et al. 2023

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Objectives To validate a new tooth mobility simulating in vitro model for biomechanical tests of dental appliances and restorations. Material and methods Load-deflection curves for teeth in CAD/CAM models (n = 10/group, 6 teeth/model) of the anterior segment of a lower jaw with either low tooth mobility (LM) or high tooth mobility (HM) were recorded with a universal testing device and a Periotest device. All teeth were tested before and after different ageing protocols. Finally, vertical load capacity (Fmax) was tested in all teeth. Results At F = 100 N load, vertical/horizontal tooth deflections before ageing were 80 ± 10 µm/400 ± 40 µm for LM models and 130 ± 20 µm/610 ± 100 µm for HM models. Periotest values were 1.6 ± 1.4 for LM models and 5.5 ± 1.5 for HM models. These values were within the range of physiological tooth mobility. No visible damage occurred during ageing and simulated ageing had no significant effect on tooth mobility. Fmax values were 494 ± 67 N (LM) and 388 ± 95 N (HM). Conclusion The model is practical, easy to manufacture and can reliably simulate tooth mobility. The model was also validated for long-term testing, so is suitable for investigating various dental appliances and restorations such as retainers, brackets, dental bridges or trauma splints. Clinical relevance Using this in-vitro model for high standardised investigations of various dental appliances and restorations can protect patients from unnecessary burdens in trials and practice.

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Flexibility of resin splint systems for traumatized teeth

Cited by 2 publications

References 12 publications

Tooth Mobility Reproduction in Dental Material Research: A Scoping Review

Tooth Mobility Reproduction in Dental Material Research: A Scoping Review

A new CAD/CAM tooth mobility simulating model for dental in vitro investigations

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