Internal adaptation assessment of implant infrastructures manufactured through five different techniques (heat-press, milling, lost wax, calcinable cylinder, and CAD/Waxx®): an in vitro pilot study DOI Creative Commons
Roberto Sartori, Juliana Campos Hasse Fernandes, Gustavo Vicentis Oliveira Fernandes

и другие.

Frontiers in Dental Medicine, Год журнала: 2024, Номер 5

Опубликована: Ноя. 6, 2024

The aim of this study was to evaluate the fit performance implant infrastructures manufactured by five different techniques: heat-press (IPS), milling (ZIR), lost wax (CER), calcinable cylinder (CAL), and CAD/Waxx® (CAD). methodology based on Replica Technique, which can simulate infrastructure component. Thus, each internally filled with low-viscosity silicone addition seated component until its final setting, obtaining replica cementation space. After removing coping containing film, light-density inserted in place components, surroundings, condensation applied, establishing support for assembly. joint sectioned mesiodistally, photographed, analyzed image processing software order measure thickness interface infrastructure/implant at areas: marginal opening (M), gingival-axial angle (G-A), axial region (A), axial-occlusal (A-O) occlusal surface (O). lowest highest average between groups was, respectively, IPS: 187.5 μm CAD: 221.6 μm, statistically significant differences (p < 0.01) among all groups; point A: 99.86 O: 279.78 μm. IPS group exhibited value internal space implant. demonstrated a correlation findings literature, except CAL group; otherwise, angles A-O G-A values beyond that expected. It possible conclude presented adaptations, suggesting interference spaces due manufacturing processes.

Язык: Английский

Management of Single Tooth Replacement in the Esthetic Region Using Immediate Implant Placement: A Case Report DOI Creative Commons
Manish Rathi, Balaji Manohar

Clinical Case Reports, Год журнала: 2025, Номер 13(1)

Опубликована: Янв. 1, 2025

ABSTRACT This case report aimed to illustrate the management of single tooth replacement in esthetic region using immediate implant placement, highlighting importance interdisciplinary treatment planning and adherence principles. A 37‐year‐old female presented with a fractured upper front tooth, necessitating attention restore esthetic.

Язык: Английский

Процитировано

0

Resective surgical treatment of peri-implantitis: an integrative review DOI Open Access

Smail Belasla,

Filipe Castro, Gianna Dipalma

и другие.

Oral & Implantology, Год журнала: 2025, Номер 17(1), С. 50 - 59

Опубликована: Фев. 12, 2025

Objectives: This review aimed to analyze the resective surgical treatment of peri-implantitis (PI), evaluating whether it is an effective approach. Methods: An electronic search was done through PubMed/MedLine and Online Knowledge Library (B-On) databases from 2011 2022. The section studies guided by reading title, abstract, full-text article. It included randomized controlled trials (RCTs), only clinical studies, articles in English language addressing PI, taking into account respective parameters: probing depth (PD), bleeding on (BoP), marginal bone loss (MBL), microbiological data. Results: According bibliographic research, we found 325 articles; therefore, seven were for integrated this review. Over 401 implants studied 221 patients diagnosed with PI treated different approaches. Two had a 24-month follow-up; one 12 months; two duration 36 3 study 6-month follow-up. Regarding mean age patients, average 59.3 years found. All both smoking non-smoking but these did not show any negative effects treatments PI. There large heterogeneity methods treating PI: (1) surgery osteoplasty surface debridement (implantoplasty, IP); (2) use medications/antiseptic (0.12% chlorhexidine + 0.05% cetylpyridinium chlorine) or acids (phosphoric acid 35%); (3) adjunctive laser. best PD reduction result obtained Bianchini et al.’s study, 75% decrease. %BoP present Papadopoulos al., 73% 67%, respectively, approaching isolated “open flap” adding MBL Englezos difference 4.9 mm. Conclusion: effectively reduced parameters (PD, BoP, MBl, inflammation) tissues affected More scientific evidence limited regarding success PI; however, additional more significant number longer follow-ups are necessary.

Язык: Английский

Процитировано

0

Influence of Prosthetic Emergence Profile on Peri-Implant Marginal Bone Stability: A Comprehensive Review DOI Creative Commons
Rossana Izzetti, Chiara Cinquini,

Marco Nisi

и другие.

Medicina, Год журнала: 2025, Номер 61(3), С. 517 - 517

Опубликована: Март 17, 2025

The prosthetic emergence profile is a factor potentially affecting marginal bone level around dental implants. aim of this review to provide comprehensive analysis the influence on peri-implant bone-level stability. an important parameter in implant dentistry, reflecting stability implants, and it critical indicator long-term success. Minimizing loss implants key for maintaining function, supporting soft tissues, achieving predictable aesthetic outcomes. scientific literature presents various examples evidence angle designs loss. Several studies suggest that angles exceeding 30° convex may increase risk peri-implantitis resorption, while others find no significant correlation. Moreover, several demonstrated positive taper joint connections Although current remains diverse, essential prioritize cleanability minimize plaque accumulation successful implant-prosthetic restoration. Proper maintenance continuous follow-up monitor are beneficial obtaining stable optimal results.

Язык: Английский

Процитировано

0

Influencing factors and survival rates in immediate vs. delayed dental implant placement: a six-year retrospective analysis DOI Creative Commons

Yanfei Cheng,

Zhuangming Marc Lai,

Weiguang Yu

и другие.

Frontiers in Dental Medicine, Год журнала: 2025, Номер 6

Опубликована: Апрель 29, 2025

This retrospective cohort study aimed to compare survival rates between immediate (≤24 h post-extraction) and delayed (3-4 months dental implants identify patient- site-specific risk factors for implant failure, with emphasis on anatomical site, sex, osteoporosis. We analyzed 1,500 (300 immediate, 1,200 delayed) from patients treated at the Guangdong Provincial Hospital of Traditional Chinese Medicine (2005-2023). Kaplan-Meier analysis evaluated cumulative over 72 months, Cox regression modeling assess predictors failure. Propensity score matching (PSM) addressed baseline covariate imbalances. Delayed exhibited significantly higher than (81.1% vs. 53.2%, p < 0.0001). Survival divergence intensified after 24 retaining 979 202 implants. Mandibular sites consistently outperformed maxillary in both strategies (delayed: 88.5% 72.2%; immediate: 70.5% 40.7%, Male sex (HR: 1.64, 95% CI: 1.28-1.88; 0.001) osteoporosis 2.50, 1.17-4.52; = 0.024) emerged as independent factors, while tobacco use, diabetes, hypertension showed no significant associations. PSM resolved most imbalances, post-matching standardized mean differences (SMD) <0.1 key covariates. implantation 3-4 post-extraction provides superior intermediate-term survival, particularly mandibular sites. individuals face elevated failure risks, warranting tailored clinical protocols. While remain viable, placement is recommended high-risk populations optimize long-term outcomes.

Язык: Английский

Процитировано

0

Effect of Fluid Contamination on Reverse Torque of Healing Abutments in Two Implant Connection Systems: In Vitro Study DOI Creative Commons
Shifra Levartovsky,

Guy Ronen,

Perry Raz

и другие.

Clinical Implant Dentistry and Related Research, Год журнала: 2025, Номер 27(3)

Опубликована: Май 26, 2025

ABSTRACT Introduction This in vitro study investigates the impact of blood, saliva, and chlorhexidine contamination on reverse torque values (RTVs) healing abutments two types implant‐abutment connections: internal hex conical. Methods A total 88 Ti6Al4V titanium alloy dental implants were tested, comprising ( n = 44, MIS Seven) conical C1). Each group was further divided into four subgroups 11) based type medium used. Healing tightened onto implant fixtures using a 25 Ncm with designated medium, followed by retightening after 10‐min interval. After two‐week incubation period, recorded digital gauge. To assess differences between systems within same as well system, Welch two‐sample t ‐test employed. Additionally, linear regression analysis conducted to evaluate interaction systems. Results For Seven implants, RTVs consistently lower than initial across all groups. In contrast, for C1 exceeded saliva blood groups; however, presence reduced RTVs. comparative revealed that connection required significantly higher system (coefficient 3.318). No significant observed control However, p 0.0006) 0.00009). Furthermore, indicated contamination, RTVs, mean 7.18 4.9 (Ncm), respectively, compared implants. Conclusions Conical connections generally require abutment disconnection connections. Both contaminant affect Chlorhexidine has been shown reduce both tends increase torque, particularly

Язык: Английский

Процитировано

0

Examination of Various Abutment Designs Behavior Depending on Load Using Finite Element Analysis DOI Creative Commons
Mehmet Onur Yağır, Şaduman Şen, Uğur Şen

и другие.

Biomimetics, Год журнала: 2024, Номер 9(8), С. 498 - 498

Опубликована: Авг. 16, 2024

Studies on dental implant abutments’ geometric design and material selection offer significant innovations results. These studies aim to improve the functionality aesthetic performance, minimize microcavities’ formation, ensure implant-supported prostheses’ longevity. For example, CAD-CAM fabricated custom abutments have been found produce a better marginal fit fewer microgaps than standard abutments. In an in vitro study, transepithelial offered lower microgap values titanium-based provided at implant–abutment interface. It is known that mechanical biological performance with Polyether Ether Ketone (PEEK) addressed. New materials such as PEEK zirconia advantages biocompatibility aesthetics. Along those studies, different abutment designs are also important. Abutment geometry optimized stress distribution peri-implant bone loss. connections angles, life performances may vary depending static dynamic load. emphasize importance of research types implants’ durability, homogeneous load distribution, reliability. The parts used treatment insufficient distribute homogeneously against chewing pressure due their geometry. Non-uniform damages prosthetic crown, accelerating wear process. This study aimed create biomechanical increase durability connection by reducing concentrations response masticatory compression directions forces guarantee long-term success system providing more distribution. apply axial direction these models simulation environment calculate compare deformation As method, three-dimensional treatments forming were designed. Different created models. Taking current reference, finite element analysis (FEA) was performed applying loads each model ANSYS software (version 24.1). Comparative graphs prepared interpreted for obtained after applied evaluated (A, B, C, D, E) under 100 N using Kruskal–Wallis test. test showed differences between groups (p < 0.001). greatest difference observed E A (q′ = 6.215), C 3.219, p 0.005). Regarding values, highest Model B (97.4 MPa), while lowest (9.6 MPa). crown exhibited (22.7 MPa) (17.3 (14.8 (11.3 cortical cancellous quite similar across models, showing no differences. findings indicate significantly impact performance. Among systems five which existing compared, achieved, especially viscoelastic surface area increased designs. Clinically, inadequacy limited mounting or today’s applications led searches. concluded this considered alternatives contribute positively material, considering von Mises stresses directions. brings new perspective practices offers alternative practices.

Язык: Английский

Процитировано

0

Internal adaptation assessment of implant infrastructures manufactured through five different techniques (heat-press, milling, lost wax, calcinable cylinder, and CAD/Waxx®): an in vitro pilot study DOI Creative Commons
Roberto Sartori, Juliana Campos Hasse Fernandes, Gustavo Vicentis Oliveira Fernandes

и другие.

Frontiers in Dental Medicine, Год журнала: 2024, Номер 5

Опубликована: Ноя. 6, 2024

The aim of this study was to evaluate the fit performance implant infrastructures manufactured by five different techniques: heat-press (IPS), milling (ZIR), lost wax (CER), calcinable cylinder (CAL), and CAD/Waxx® (CAD). methodology based on Replica Technique, which can simulate infrastructure component. Thus, each internally filled with low-viscosity silicone addition seated component until its final setting, obtaining replica cementation space. After removing coping containing film, light-density inserted in place components, surroundings, condensation applied, establishing support for assembly. joint sectioned mesiodistally, photographed, analyzed image processing software order measure thickness interface infrastructure/implant at areas: marginal opening (M), gingival-axial angle (G-A), axial region (A), axial-occlusal (A-O) occlusal surface (O). lowest highest average between groups was, respectively, IPS: 187.5 μm CAD: 221.6 μm, statistically significant differences (p < 0.01) among all groups; point A: 99.86 O: 279.78 μm. IPS group exhibited value internal space implant. demonstrated a correlation findings literature, except CAL group; otherwise, angles A-O G-A values beyond that expected. It possible conclude presented adaptations, suggesting interference spaces due manufacturing processes.

Язык: Английский

Процитировано

0