One‐stage versus two‐stage technique using two splinted extra‐short implants: A multicentric split‐mouth study with a one‐year follow‐up

Clinical Implant Dentistry and Related Research, Год журнала: 2022, Номер 24(5), С. 602 - 610

Опубликована: Июнь 14, 2022

Abstract Objective To compare the clinical outcomes of extra‐short implants (≤6.5 mm) inserted with one‐stage versus two‐stage technique in adjacent sites upper or lower jaw. Materials and Methods In this split‐mouth multicenter study, were randomly divided into two groups according to healing phase: technique. Primary outcome measures implant survival, success, prosthodontic complications. Secondary measurements were: stability quotient (ISQ) collected at surgery time (T0), after 3 (T3) 12 (T12) months, marginal bone level (MBL) evaluated T0, T3, T6, T12, loss T6 plaque index (PI), probing depth (PD), bleeding on (BoP) T12. Significances differences between tested by linear mixed model random intercept. Results Nineteen patients ( 8 males 11 females) included. A total 38 inserted. At T12 cumulative survival success rate 100% both groups. No statistically significant recorded for any analyzed parameters point. ISQ values similar T0 (two‐stage: mean 67.53 ± SD 19.47; one‐stage: 66.53 19.07 p = 0.8738) increased 12‐month follow‐up appointment 81.1 7.04; 81.39 0.9266). MBL was 0.46 0.41 (two‐stage) 0.45 0.38 (one‐stage) mm 0.9417), while PD 2.7 0.85 2.69 0.89 mm. Conclusions Within limits present short‐term report, demonstrated optimal using technique, without compared traditional approach.

Язык: Английский

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Investigation of the Influence of Roughness and Dental Implant Design on Primary Stability via Analysis of Insertion Torque and Implant Stability Quotient: An In Vitro Study

Journal of Clinical Medicine, Год журнала: 2023, Номер 12(13), С. 4190 - 4190

Опубликована: Июнь 21, 2023

In the placement of dental implants, primary fixation between implant and bone is great importance corresponds to compressive mechanical that aims prevent micromovement implant. The aim this research was determine role roughness type (tissue-level or bone-level) in stability, measured using resonance frequency analysis (RFA) insertion torque (IT). We analyzed 234 titanium placed fresh calf ribs, at half-tissue level half-bone level. surface subjected grit-blasting treatments with alumina particles 120, 300, 600 μm a projection pressure 2.5 bar, resulting three types roughness. Roughness determined via optical interferometry. wettability surfaces also determined. Implant stability high-precision torquemeter obtain IT, RFA used quotient (ISQ). results show rough Sa values 0.5 4 do not affect stability. However, important; bone-level implants obtained highest values. A good correlation IT ISQ demonstrated. New vivo studies are necessary know whether these can be maintained long term.

Язык: Английский

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Management of a Malpractice Dental Implant Case in a Patient with History of Oral Bisphosphonates Intake: A Case Report and Narrative Review of Recent Findings

Prosthesis, Год журнала: 2023, Номер 5(3), С. 826 - 839

Опубликована: Сен. 4, 2023

The present article aims to describe the management of a malpractice dental implant case in patient with history oral bisphosphonates (BF) intake (alendronic acid every 15 days for 20 years) and perform narrative review recently published articles (2019–2023) on topic. A female rehabilitated 18 nails mandible years ago underwent two surgeries; first one included explantation nails; second insertion implants anterior region. At last follow-up (21 months from surgery one) no complications nor episodes bisphosphonate-related osteonecrosis jaw (BRONJ) were highlighted. Furthermore, 12 recent topic reported was performed. Based analysis, related patients BF seems remain controversial. Most findings highlight how evidence both safety treatment possibility foresee risk onset based preoperative factors seem be scarce. described did not report any BRONJ. However, single is scarce more clinical trials are required deepen knowledge

Язык: Английский

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Immediate loading full-arch rehabilitation using transmucosal tissue-level implants with different variables associated: a one-year observational study

Minerva Dental and Oral Science, Год журнала: 2023, Номер 72(5)

Опубликована: Май 17, 2023

The aim of the present observational study was to investigate application transmucosal tissue-level implants in immediate loading full-arch rehabilitation with different variables associated.Patients needing a implant were recruited and rehabilitated four tissue level implants. Data related implants' diameters lengths, jaw distributions, presence angulated abutments collected. following outcomes evaluated: survival rate, marginal bone loss (MBL), Plaque Index (PI), bleeding on probing (BoP), depth (PD). Descriptive statistical analysis reported univariate linear regression models built assess significant correlation between MBL factors.Twenty patients for total number 80; 11 rehabilitations performed maxilla, while 9 mandible; 48 presented 3.8 mm diameter 32 4.25 diameter. Implants length varied 10 15 mm; 40 tilted connected abutment, straight directly prostheses (no abutments). At one year follow-up visit no failed resulting an rate 100%. overall 1.19±0.30 mm. No statistically difference (P>0.05) highlighted among any subgroups analyzed.Despite associated, seem represent valid option when applied rehabilitation. Further research longer periods are encouraged confirm result.

Язык: Английский

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Implant survival rate and marginal bone loss of 174 implants with different variables associated over a minimum observational period of 20 years: A retrospective study

Journal of Prosthodontics, Год журнала: 2024, Номер 33(8), С. 764 - 773

Опубликована: Март 22, 2024

To investigate the long-term implant survival rate and marginal bone loss (MBL) of implants with different variables associated over an observational period at least 20 years.

Язык: Английский

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Comparison between Bone-Level and Tissue-Level Implants in Immediate-Loading Full-Arch Rehabilitations: A Retrospective Multi-Center 1-Year Follow-Up Study

Prosthesis, Год журнала: 2023, Номер 5(4), С. 1301 - 1311

Опубликована: Ноя. 30, 2023

The objective of the present retrospective multi-center study was to analyze outcomes bone-level (BL) implants and tissue-level (TL) in immediate-loading full-arch rehabilitations. Patients who were previously rehabilitated with rehabilitations either BL or TL considered. Data regarding implant survival rate, marginal bone loss (MBL), peri-implant probing depth (PPD), plaque index (PI), bleeding on (BOP) recorded, 1-year follow-up data statistically analyzed between two groups. In total, 38 patients evaluated for a total number 156 (n = 80 n 76 implants). An rate 97.37% recoded group while an 100% noted group. A MBL 1.324 ± 0.64 mm recorded implants, 1.194 0.30 implants. significant difference highlighted at mesial aspect (p 0.01552) presenting higher MBL. Within range acceptable healthy values, also BOP < 0.00001), values. No > 0.05) any other variables analyzed. limitations study, both seem provide good clinical after 12-month observational period when employed rehabilitation.

Язык: Английский

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Can Abutment with Novel Superlattice CrN/NbN Coatings Influence Peri-Implant Tissue Health and Implant Survival Rate Compared to Machined Abutment? 6-Month Results from a Multi-Center Split-Mouth Randomized Control Trial

Materials, Год журнала: 2022, Номер 16(1), С. 246 - 246

Опубликована: Дек. 27, 2022

Background: The aim of the present multi-center split-mouth randomized control trial was to investigate effect on peri-implant tissue abutment with chromium nitride/ niobium nitride (CrN/NbN) coatings (superlattice) compared traditional machined surface. Methods: Two adjacent posterior implants were inserted in 20 patients. A randomly screwed either mesial or distal implant, while a superlattice other one. Implant survival rate, probing depth (PPD), plaque index (PI), and bleeding (BI) collected 6 months after surgery, marginal bone loss (MBL) evaluated at T0 T6.; Results: rate 97.7%. total MBL 0.77 ± 0.50 mm recorded for abutments, mean 0.79 0.40 PPD 1.3 0.23 Group, 1.31 0.3 surface Group. PI 0.55 0.51 Group 0.57 BI 0.47 0.49 0.46 No statistically significant difference highlighted between two Groups (p > 0.05). Conclusions: After 6-month observational period, no differences abutment. Further vitro studies as well clinical research longer follow-ups are required better properties novel abutments’ coating its oral tissues.

Язык: Английский

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Influence of Placement of Ultrashort Implant at Sub-Crestal, Crestal and Supra-Crestal Level with Titanium or Polyetheretherketone Hybrid Abutment: 3D Finite Element Analysis

Prosthesis, Год журнала: 2023, Номер 5(3), С. 721 - 732

Опубликована: Авг. 2, 2023

The aim of this study was to evaluate and compare the stress concentration short dental implants supporting different conical abutments using 3D finite element analysis (3D-FEA). A tridimensional model single-unit (5.2 mm × 5 mm) designed computer-aided design (CAD) software based on manufacturer’s stereolithography. were positioned in a bone support titanium or ceramic-reinforced PEEK considering levels (supra-crestal, crestal sub-crestal). With aid engineering (CAE) software, created an axial load 500 N applied. Observing mechanical response implant, abutment screw, both evaluated materials resulted homogeneous could be indicated for implant-supported restorations with fixtures. However, aiming decrease strain tissue, placing implant sub-crestal position is preferable option; while supra-crestal placement decreases at screw implant.

Язык: Английский

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Implant-Supported Prostheses in the Edentulous Mandible: Biomechanical Analysis of Different Implant Configurations via Finite Element Analysis

Dentistry Journal, Год журнала: 2022, Номер 11(1), С. 4 - 4

Опубликована: Дек. 23, 2022

This study explores the implant-supported prosthetic treatment alternatives of edentulous mandible from a biomechanical point view by means Finite Element Analysis (FEA). element (FE) models were used to simulate cases treated with six, five, and four, implants fixed prosthesis cantilever. In four implant treatments, three analyzed; posterior placed in axial positions, angled at 30° 45°. Cases six axially also analyzed placing distally foramen, thus eliminating cantilever prostheses. between foramina, highest values for principal strains von Mises stresses observed case where foramen without showed much lower bone stress strain levels compared foramina. From view, it seems be better option use positioned cantilevers.

Язык: Английский

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Computational Investigation of Dental Implant Restoration Using Platform-Switched and -Matched Configurations

Computation, Год журнала: 2023, Номер 11(4), С. 79 - 79

Опубликована: Апрель 12, 2023

Dental trauma is a serious and highly prevalent health issue across the globe. Most of frequent dental injuries result in loss teeth affects overall quality life. The tooth usually compensated by implant. common methods adopted while placing implant are platform switching matching. A plethora works has studied qualitative performance these different situations clinically. However, detailed comparative work studying in-depth mechanical parameters not been attempted yet. In this computational work, two commonly available platform-switched one platform-matched implant-abutment configurations were compared. 3D model an (5.5 × 9.5 mm) was designed inserted into human mandibular bone block using computer-aided design (CAD) extracting clinical imaging data. Three separate models such as Platform Switched (PS)-I, 5.5 mm with 3.8 wide abutment, (PS)-II, 4.5 Matched (PM), 5.5-mm abutment analyzed. Clinically relevant vertical-, horizontal-, oblique-type occlusal loadings applied to each characterize response. Mechanical von Mises stresses, deformations, strain energies obtained finite element modeling (FEM). These showed lower values for within peri-implant that may help limit marginal loss. same increasing more implant, screw configuration than configuration. framework, along results, anticipated guide clinicians medical practitioners making better decisions selecting methods.

Язык: Английский

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