Dentistry Journal

13 pages, 1332 KiB

Open AccessArticle

Evaluation of Cleaning Methods for Lithium Disilicate Ceramic Post Try-In Paste Application: An SEM Analysis

by Gildo Coelho Santos Junior and Maria Jacinta Moraes Coelho Santos

Dent. J. 2024, 12(9), 281; https://doi.org/10.3390/dj12090281 (registering DOI) - 31 Aug 2024

This in vitro study assessed the efficacy of three cleaning methods on lithium disilicate ceramic after the application of different try-in pastes through SEM analysis. Ten rectangular specimens of IPS e.max CAD were prepared using a diamond disc, crystallized, etched with 5% hydrofluoric [...] Read more.

This in vitro study assessed the efficacy of three cleaning methods on lithium disilicate ceramic after the application of different try-in pastes through SEM analysis. Ten rectangular specimens of IPS e.max CAD were prepared using a diamond disc, crystallized, etched with 5% hydrofluoric acid, and subjected to three try-in pastes—Calibra ©, Variolink (V), RelyX Veneer^®—and three cleaning techniques—air–water spray (RD), ultrasonic bath in distilled water for five minutes (ULT/W), and ultrasonic bath in distilled alcohol for five minutes (ULT/A). A control specimen was also included. After one-minute paste application and subsequent cleaning method application, SEM evaluation was conducted. The results indicate that RD was as effective as CTRL in removing remnants from R-RD, V-ULT/W and V-ULT/A samples, but ineffective for all Calibra paste-contaminated specimens. In conclusion, the optimal removal of try-in paste residues from lithium disilicate restorations is paste-dependent; however, ultrasonic baths with distilled water or alcohol proved effective for most pastes tested. Full article

(This article belongs to the Special Issue Esthetic Dentistry: Current Perspectives and Future Prospects)

10 pages, 2851 KiB

Open AccessArticle

Perceived Enablers of and Barriers to Serious Game as Oral Histology Learning Strategy for Undergraduate Dental Students

by Lisa R. Amir, Salsabila N. Dewatmoko, Irene C. Leonardy, Rezon Yanuar, Dewi F. Suniarti, Erik Idrus, Kawin Sipiyaruk, Ria Puspitawati and Yuniardini Wimardhani

Dent. J. 2024, 12(9), 280; https://doi.org/10.3390/dj12090280 (registering DOI) - 31 Aug 2024

Abstract

Previously, we reported the serious game HistoRM as an innovative learning approach for an oral histology course. This study aimed to examine the impact of HistoRM on summative assessment and the enablers and barriers factors affecting HistoRM as an interactive learning strategy in [...] Read more.

Previously, we reported the serious game HistoRM as an innovative learning approach for an oral histology course. This study aimed to examine the impact of HistoRM on summative assessment and the enablers and barriers factors affecting HistoRM as an interactive learning strategy in an oral histology course. A crossover randomized controlled trial was performed. Study participants were first-year dental students at the Universitas Indonesia. The average final grades of students who participated in HistoRM serious game were significantly higher than those of students who did not participate in this trial (p < 0.001). Positive responses of HistoRM were observed in the learning content, games and learning experience domains. The enabler factors most recognized by the students were the game method, which helped students to understand the learning materials; the immediate feedback provided following each gameplay; as well as the fun and interesting gameplay. The barrier factors most recognized by the students were some challenges of the gameplay, which resulted in a longer time needed to study. While the HistoRM serious game can stimulate student motivation and engagement in learning oral histology, overcoming the barriers is essential for the implementation of serious games as a complementary learning approach in the dental curriculum. Full article

(This article belongs to the Special Issue Feature Papers to Celebrate the First Impact Factor of Dentistry Journal)

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12 pages, 432 KiB

Open AccessArticle

Direct Oral Anticoagulants and Bleeding Management Following Tooth Extractions—A Prospective Cohort Study

by Rossana Izzetti, Chiara Cinquini, Marco Nisi, Marco Mattiozzi, Monica Marotta and Antonio Barone

Dent. J. 2024, 12(9), 279; https://doi.org/10.3390/dj12090279 (registering DOI) - 30 Aug 2024

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Abstract

The aim of the present study was to assess the occurrence of intra-, peri-, and post-operative bleeding following tooth extractions in patients treated with direct oral anticoagulants (DOACs). Consecutive patients requiring at least one dental extraction were enrolled. The DOAC regimen was either [...] Read more.

The aim of the present study was to assess the occurrence of intra-, peri-, and post-operative bleeding following tooth extractions in patients treated with direct oral anticoagulants (DOACs). Consecutive patients requiring at least one dental extraction were enrolled. The DOAC regimen was either maintained or suspended. Patients were classified in subgroups depending on the number of teeth extracted per procedure (≤3 or >3), the need for flap elevation, and the performance of osteotomy. Bleeding was recorded intra-operatively; peri-operatively at 20, 40, 60, and 80 min after the procedure; and daily in the first seven days following tooth extractions. Forty-nine patients treated with DOACs (17 with rivaroxaban, 16 with apixaban, 8 with edoxaban, and 8 with dabigatran) were enrolled. Of them, 33 refrained from DOAC administration pre-operatively. The performances of >3 teeth extractions, flap elevation, and osteotomy were significantly associated with higher bleeding rates (p < 0.05). In patients treated with rivaroxaban and apixaban, bleeding episodes were more frequent. Although DOAC treatment may increase the rates of intra-operative, peri-operative, and post-operative bleeding, the recorded episodes were mild and manageable. DOAC suspension may reduce peri-operative bleeding, while no effect could be observed for post-operative bleeding. Full article

(This article belongs to the Special Issue Feature Papers to Celebrate the First Impact Factor of Dentistry Journal)

16 pages, 4840 KiB

Open AccessArticle

Occlusal Plane, Mandibular Position and Dentoalveolar Changes during the Orthodontic Treatment with the Use of Mini-Screws

by Julián David Gómez-Bedoya, Pablo Arley Escobar-Serna, Eliana Midori Tanaka-Lozano, Andrés A. Agudelo-Suárez and Diana Milena Ramírez-Ossa

Dent. J. 2024, 12(9), 278; https://doi.org/10.3390/dj12090278 - 30 Aug 2024

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Abstract

This study aimed to describe the changes produced on the occlusal plane (OP), the mandibular position and the dentoalveolar compensations of patients with distalization of the maxillary/mandibular arch assisted by mini-screws (MS). A descriptive case–series study was performed using the digital lateral cephalograms [...] Read more.

This study aimed to describe the changes produced on the occlusal plane (OP), the mandibular position and the dentoalveolar compensations of patients with distalization of the maxillary/mandibular arch assisted by mini-screws (MS). A descriptive case–series study was performed using the digital lateral cephalograms (DLC) of nine patients who underwent orthodontic treatment and required the use of MS for a complete distalization of the maxillary/mandibular arch. Records were collected at three different times (T1–T2–T3) and digitally analyzed (variables: Skeletal diagnosis; maxillary occlusal plane; position of the maxilla/mandible; and dentoalveolar changes of the distalization arch tracing the longitudinal axis of incisors/molars regarding the palatal/mandibular plane). Findings show that the OP varied from T1–T2–T3 in all cases, indicating its stepping or flattening. ODI, APDI, SNA, SNB, and ANB changed minimally in all cases, without variations in the mandibular position or in the skeletal diagnosis. Dentoalveolar measurements also showed differences between T1–T2–T3. In summary, conventional orthodontic treatment modified the OP during the first phase of treatment. Moreover, the distalization mechanics with MS changed the OP and produced dentoalveolar changes, mainly in the inclination of incisors and molars. Other measures considered in the study did not change substantially. Full article

(This article belongs to the Special Issue Feature Papers to Celebrate the First Impact Factor of Dentistry Journal)

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12 pages, 228 KiB

Open AccessArticle

Evaluation of General Anesthesia and Sedation and Follow-Up Compliance in Pediatric Dental Procedures: A Comprehensive Analysis of Long-Term Outcomes and Gender Differences

by Maria Sarapultseva and Alexey Sarapultsev

Dent. J. 2024, 12(9), 277; https://doi.org/10.3390/dj12090277 - 28 Aug 2024

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Abstract

This retrospective study evaluated the effectiveness of different types of general anesthesia (GA) and sedation in pediatric dental procedures, focusing on treatment outcomes and follow-up compliance with an emphasis on gender differences. Clinical records of 1582 pediatric patients, aged 0–18 years, were analyzed [...] Read more.

This retrospective study evaluated the effectiveness of different types of general anesthesia (GA) and sedation in pediatric dental procedures, focusing on treatment outcomes and follow-up compliance with an emphasis on gender differences. Clinical records of 1582 pediatric patients, aged 0–18 years, were analyzed to examine the distribution, duration and impact of anesthesia types on dental procedure complexity. The study population was divided into three age groups: 0–6, 7–12 and 13–18 years. We assessed follow-up attendance rates by gender and anesthesia type, calculated the decayed, missing and filled (DMF) index and evaluated the need for further treatment and reasons for retreatment. Our findings indicated that general anesthesia with inhalational agents and muscle relaxants was the most frequently used method (1260 instances), followed by nitrous oxide sedation (163 instances) and sevoflurane GA with a laryngeal mask airway (158 instances). Inhalational GA with muscle relaxants had the longest average duration (2.78 h) and the highest DMF index (7.43), reflecting its use in more severe dental conditions. Gender analysis revealed a slight male predominance in using inhalational GA with muscle relaxants (55.87% male vs. 44.13% female). Female patients demonstrated higher follow-up compliance across all periods. Overall, our results highlight the importance of tailored anesthesia and sedation plans, as well as follow-up protocols, in pediatric dentistry. This study provides valuable insights for practitioners in selecting appropriate anesthesia and sedation types and developing strategies to improve follow-up compliance and treatment success. Full article

(This article belongs to the Section Restorative Dentistry and Traumatology)

18 pages, 19065 KiB

Open AccessSystematic Review

Correlation between Implant Surface Roughness and Implant Stability: A Systematic Review

by Marta Romero-Serrano, Manuel-María Romero-Ruiz, Mariano Herrero-Climent, Blanca Rios-Carrasco and Javier Gil-Mur

Dent. J. 2024, 12(9), 276; https://doi.org/10.3390/dj12090276 - 23 Aug 2024

Viewed by 323

Abstract

The aim of this study was to find in the literature data on the relationship between implant surface roughness and implant stability achieved, from the time of placement to three months afterward, to help us to know what type of surface roughness is [...] Read more.

The aim of this study was to find in the literature data on the relationship between implant surface roughness and implant stability achieved, from the time of placement to three months afterward, to help us to know what type of surface roughness is more favorable to guarantee implant stability and osseointegration. A systematic review was conducted in accordance with the PRISMA 2020 (Preferred Reporting Items for Systematic Review and Meta-analysis) statement, and the protocol was registered on the Open Science Framework. The specific inclusion and exclusion criteria were selected using the PICOS framework. The databases Medline (PubMed), Scopus, the Web of Science and The Cochrane Library were searched up to October 2023. The selection of studies and data extraction were conducted by two independent reviewers. The review included a total of 11 studies. A total of 1331 dental implant placements were identified. Two of the eleven selected studies were on humans in vivo, eight were on animals in vivo, and one was on animals in vitro. A statistically significant correlation between surface roughness and implant stability as measured by resonance frequency analysis (RFA) was not identified in ten of the eleven selected studies. It appears that there is no correlation between primary stability and the degree of implant roughness. However, there appears to be a correlation between the roughness of the implant and the degree of osseointegration, as indicated by bone-implant contact values. This correlation is more closely related to secondary stability. The great methodological variability makes it difficult to compare data and draw conclusions, so it would be desirable to agree on a common methodology to help draw appropriate conclusions from published studies. Full article

(This article belongs to the Special Issue Risk Factors in Implantology)

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11 pages, 2125 KiB

Open AccessArticle

Bond Strength of Nanocomposite Hard Liner to CAD-CAM Milled, 3D Printed, and Conventionally Fabricated Denture Base Resins

by Zainab Albazroun, Atheer Alabdullatif, Sarah Aldehaileb, Ferdoos Alhalimi, Faris A. Alshahrani, Soban Q. Khan, Shaimaa M. Fouda, Hamad S. AlRumaih and Mohammed M. Gad

Dent. J. 2024, 12(9), 275; https://doi.org/10.3390/dj12090275 - 23 Aug 2024

Viewed by 432

Abstract

Background: To investigate the effect of zirconium dioxide nanoparticles (ZrO₂NPs) on the shear bond strength (SBS) of hard denture lines bonded to different denture base resins. Methods: Five different denture bases were used in this study: conventional heat-cured resin, IvoCad, AvaDent, [...] Read more.

Background: To investigate the effect of zirconium dioxide nanoparticles (ZrO₂NPs) on the shear bond strength (SBS) of hard denture lines bonded to different denture base resins. Methods: Five different denture bases were used in this study: conventional heat-cured resin, IvoCad, AvaDent, NextDent, and FormLabs, in acrylic specimens of 10 × 10 × 2.5 mm³ (N = 150, n = 10). Specimens were centered at the bottom of a silicon mold to create an auto-polymerized holder. Three major groups of reline material were used: no ZrO₂NPs (control), 2 wt.%, and 4 wt.% ZrO₂NPs. Reline was bonded to the resin surface using a customized jig. After polymerization, specimens were stored in distilled water, and 5000 thermal cycles were performed. Each specimen was fixed to an Instron machine, and SBS was tested using a blade loaded (1 mm/min) at the resin interface until failure. Data was collected and analyzed using two-way ANOVA and post hoc Tukey test (α = 0.05). Results: AvaDent showed the highest SBS when compared with other denture base materials (p < 0.001) except for IvoCad. The addition of ZrO₂NPs significantly decreased the SBS of AvaDent (p = 0.003) and IvoCad (p = 0.001), while heat polymerized resin, Formlabs, and NextDent showed no significant change in SBS (p > 0.05). Conclusion: CAD-CAM milled denture base resin showed higher SBS with pure denture reline. The addition of ZrO₂NPs decreased the SBS of reline with CAD-CAM milled denture base resins but did not change bond strength with 3D printed and conventional denture base resins. Full article

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25 pages, 709 KiB

Open AccessSystematic Review

The Fracture Resistance Comparison between Titanium and Zirconia Implant Abutments with and without Ageing: Systematic Review and Meta-Analysis

by Marek Chmielewski, Wojciech Dąbrowski and Iwona Ordyniec-Kwaśnica

Dent. J. 2024, 12(9), 274; https://doi.org/10.3390/dj12090274 - 23 Aug 2024

Viewed by 421

Abstract

Implant abutments are essential components of implant prosthetic restorations. The golden standard for abutment material is titanium; however, due to its properties, the esthetic result can be compromised. The most popular esthetic material alternatives are one- and two-piece zirconia. The study aimed to [...] Read more.

Implant abutments are essential components of implant prosthetic restorations. The golden standard for abutment material is titanium; however, due to its properties, the esthetic result can be compromised. The most popular esthetic material alternatives are one- and two-piece zirconia. The study aimed to answer the questions of whether zirconia abutments can be used interchangeably with titanium in both anterior and posterior regions and how aging of the abutment affects durability. For this study, an electronic search of MEDLINE (PubMed) and Scopus (Embase) was conducted. The PRISMA guidelines were followed, and a systematic review was registered with PROSPERO. The search revealed 4031 results, of which 17 studies were selected. The strongest material for abutments is titanium, closely followed by two-piece zirconia. One-piece zirconia abutments were the weakest. The cyclic loading above 1,000,000 cycles decreased the fracture resistance of the abutments. Differences in implant diameter, angulation, and restoration affected the fracture strength of all compared materials. The main mode of failure for titanium abutments was screw bending or screw fracture. One-piece zirconia most often presented catastrophic failure with internal hexagon fracture below the implant neck. Two-piece zirconia exhibits a combination of failure modes. Two-piece zirconia abutments may be suitable for use in the posterior region, given their comparable fracture resistance to titanium abutments. Despite the fact that one-piece zirconia is capable of withstanding forces that exceed those exerted during mastication, it is recommended that it be employed primarily in the anterior dentition due to its propensity for unfavorable failure modes. Full article

(This article belongs to the Special Issue Dental Materials Design and Innovative Treatment Approach)

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Dent. J., Volume 12, Issue 9 (September 2024) – 8 articles

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