Effect of defect size and tooth anatomy in the measurements of a 3D patient monitoring tool

Gimenez-Gonzalez, Beatriz; Setyo, Christof; Picaza, Mikel Gomez; Tribst, João Paulo Mendes

doi:10.1016/j.heliyon.2022.e12103

Cited by 5 publications

(8 citation statements)

References 31 publications

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“… 35 36 In order to properly address wear detection, however, it is important to take into account both the faults and the conditions affecting the digital instrument. 48 Previous studies have indicated that it is not always possible to determine which parts remained stable and which areas suffered modifications in a clinical context. 48 Additionally, the full-arch impressions typically accumulate more inaccuracy than partial-arch impressions.…”

Section: Discussionmentioning

confidence: 99%

“… 48 Previous studies have indicated that it is not always possible to determine which parts remained stable and which areas suffered modifications in a clinical context. 48 Additionally, the full-arch impressions typically accumulate more inaccuracy than partial-arch impressions. 49 50 Therefore, tooth wear should be examined using an automated process that compares tooth by tooth.…”

Section: Discussionmentioning

confidence: 99%

“… 49 50 Therefore, tooth wear should be examined using an automated process that compares tooth by tooth. 48 The precision of the measuring systems in previous clinical studies, which was in a range from 5 to 20 µm, had made it impossible to evaluate the exact value of the wear in various tests. 27 28 29 30 31 34 Furthermore, earlier studies found that greater defect regions are predicted to have inaccurate readings because of more widespread erosion or longer follow-up times.…”

Section: Discussionmentioning

confidence: 99%

“…Interpreting a situation where there are multiple and significant faults should be done with caution. 48 Further researches are necessary to thoroughly examine the inaccuracies during dental follow-up since there is an abundance of data in the literature examining the elements that affect the digital patient monitoring by 3D superimposition.…”

Section: Discussionmentioning

confidence: 99%

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3D quantitative analysis and SEM qualitative analysis of natural antagonist enamel opposing CAD-CAM monolithic zirconia or lithium disilicate tooth-supported crowns versus enamel opposing natural enamel

Woraganjanaboon,

Anunmana

2024

J Adv Prosthodont

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PURPOSE This study aimed to evaluate the maximum vertical wear, volume wear, and surface characteristic of antagonist enamel, opposing monolithic zirconia or lithium disilicate crowns. MATERIALS AND METHODS The study comprised 24 participants (n = 12), who were randomly allocated to receive either a 5 mol% Y-TZP or a lithium disilicate crown in positions which would oppose the natural first molar tooth. The contralateral first molar along with its antagonist was considered as the enamel opposing natural enamel control. Data collection was performed using an intraoral scanner and polyvinylsiloxane impression. The means of the maximum vertical loss and the volume loss at the occlusal contact areas of the crowns and the various natural antagonists were measured by 3D comparison software. A scanning electron microscope was subsequently used to assess the wear characteristics. Results The one-year results from 22 participants (n = 11) indicated no significant differences when comparing the zirconia crown’s antagonist enamel (40.28 ± 9.11 µm, 0.04 ± 0.02 mm 3 ) and the natural enamel wear (38.91 ± 7.09 µm, 0.04 ± 0.02 mm 3 ) ( P > .05). Also, there is no significant differences between lithium disilicate crown’s antagonist enamel (47.81 ± 9.41 µm, 0.04 ± 0.02 mm 3 ) and the natural enamel wear (39.11 ± 7.90 µm, 0.04 ± 0.02 mm 3 ) ( P > .05). Conclusion While some studies suggested that monolithic zirconia caused less wear on opposing enamel than lithium disilicate, this study found similar wear levels to enamel for both materials compared to natural teeth.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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3D quantitative analysis and SEM qualitative analysis of natural antagonist enamel opposing CAD-CAM monolithic zirconia or lithium disilicate tooth-supported crowns versus enamel opposing natural enamel

Woraganjanaboon,

Anunmana

2024

J Adv Prosthodont

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“…Given the subtle boundary between physiological and pathological wear rate, accurate diagnosis is essential. While in the past this relied solely on the clinician’s experience, nowadays it is possible to take advantage of intraoral scanners to perform 3D monitoring of the patients, thereby obtaining objective measurements (such as size and depth of the wear facets) of the patient’s tooth wear over time, in order to determine whether treatment is necessary or not [ 11 , 12 ]. In cases of pathological wear, a clinical intervention with a minimally invasive approach becomes mandatory [ 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Abutment Rigidity on the Wear Resistance of a Lithium Disilicate Glass Ceramic: An In Vitro Study

Kosewski¹,

Angelis

Sorrentino

et al. 2023

JFB

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Lithium disilicate (LDS) glass ceramics are among the most common biomaterials in conservative dentistry and prosthodontics, and their wear behavior is of paramount clinical interest. An innovative in vitro model is presented, which employs CAD/CAM technology to simulate the periodontal ligament and alveolar bone. The model aims to evaluate the effect of the abutment rigidity on the wear resistance of the LDS glass ceramic. Two experimental groups (LDS restorations supported by dental implants, named LDS-on-Implant, or by hybrid ceramic tooth replicas with artificial periodontal ligament, named LDS-on-Tooth-Replica) and a control group (LDS-Cylinders) were compared. Fifteen samples (n = 15) were fabricated for each group and subjected to testing, with LDS antagonistic cusps opposing them over 120,000 cycles using a dual axis chewing simulator. Wear resistance was analyzed by measuring the vertical wear depth (mm) and the volume loss (mm3) on each LDS sample, as well as the linear antagonist wear (mm) on LDS cusps. Mean values were calculated for LDS-Cylinders (0.186 mm, 0.322 mm3, 0.220 mm, respectively), LDS-on-Implant (0.128 mm, 0.166 mm3, 0.199 mm, respectively), and LDS-on-Tooth-Replica (0.098 mm, 0.107 mm3, 0.172 mm, respectively) and compared using one-way-ANOVA and Tukey’s tests. The level of significance was set at 0.05 in all tests. Wear facets were inspected under a scanning electron microscope. Data analysis revealed that abutment rigidity was able to significantly affect the wear pattern of LDS, which seems to be more intense on rigid implant-abutment supports compared to resilient teeth replicas with artificial periodontal ligament.

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Brittle dental ceramics: A challenge in dentistry

Tribst,

Valandro,

Dal Piva

2024

Dent. Med. Probl.

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The challenge of dental ceramic degradation necessitates innovative technology, rigorous testing and proactive dental care, demanding collaboration between researchers, dentists and patients to ensure durable and reliable dental restorations.Dental ceramics are a groundbreaking advancement in the field of dentistry, offering not only functional dental restorations but also aesthetically pleasing solutions to patients. 1,2 However, the fatigue of dental ceramics remains a persistent challenge for dental practitioners and patients. 2,3 This phenomenon, characterized by the gradual degradation of the ceramic's properties over time, demands urgent attention from the dental community. Aging can also affect other biomaterials, such as dental composites and cements. 4,5 However, in brittle materials like ceramics, its effect can result in a reduction of the material's properties by over 50% of the original value. 6 Dental ceramics are often considered an ideal choice for dental restorations due to their natural appearance, biocompatibility and durability. 7 They mimic the properties of natural teeth, making them an attractive option for patients seeking long-lasting dental solutions. However, the reality is far more complex. Dental ceramics are subjected to a multitude of challenging conditions within the oral environment. These include fluctuating temperatures, acidic pH levels and intense masticatory forces. 8 These factors contribute to the deterioration of ceramic restorations over time, resulting in cracks, chipping, and, in severe cases, bulk failure. 9,10 Deterioration of dental ceramics compromises the structural integrity of the restoration, jeopardizing patients' oral health and placing a financial burden on both patients and the healthcare system. Addressing this issue requires a multifaceted approach that combines innovative research, advanced material engineering and enhanced clinical practices to repair and improve aged restorations. 11 Dentists and researchers must collaborate to develop ceramics with improved mechanical properties and enhanced resistance to crack propagation. Incorporating nanoparticles, adjusting material composition and implementing new designs are promising innovations in nanotechnology for creating dental ceramics that can withstand the challenges of the oral environment for extended Cite as

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Effect of defect size and tooth anatomy in the measurements of a 3D patient monitoring tool

Cited by 5 publications

References 31 publications

3D quantitative analysis and SEM qualitative analysis of natural antagonist enamel opposing CAD-CAM monolithic zirconia or lithium disilicate tooth-supported crowns versus enamel opposing natural enamel

3D quantitative analysis and SEM qualitative analysis of natural antagonist enamel opposing CAD-CAM monolithic zirconia or lithium disilicate tooth-supported crowns versus enamel opposing natural enamel

Effect of the Abutment Rigidity on the Wear Resistance of a Lithium Disilicate Glass Ceramic: An In Vitro Study

Brittle dental ceramics: A challenge in dentistry

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