1
|
Basak SS, Guler Ayyıldız B, Eken S, Karakıs Akcan S. Radiographic evaluation of the distance between the restoration margin and the alveolar bone crest in dental implant patients: A retrospective study. J Dent 2024; 144:104935. [PMID: 38499282 DOI: 10.1016/j.jdent.2024.104935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/08/2024] [Accepted: 03/09/2024] [Indexed: 03/20/2024] Open
Abstract
OBJECTIVES The recently introduced Implant Disease Risk Assessment (IDRA) identifies a restoration margin-alveolar bone crest (RM-AC) distance of less than 1.5 mm as a key risk factor for peri‑implant disease among eight major risk factors. This study evaluated the impact of the RM-AC distance on marginal bone loss (MBL) through radiographic analysis. METHODS This retrospective cross-sectional study included 77 partially edentulous patients (39 females and 38 males, aged 22 to 76 years) with 202 platform-switched conical connection implants, cement-retained, implant-supported fixed restorations, and bone-level implants placed between 2016 and 2021. Dental implants were followed for least 6 to 36 months at follow up functional loading. Study participants were categorized into Group A (RM-AC distance ≤ 1.5 mm, n = 69) and Group B (RM-AC distance > 1.5 mm, n = 133). Twelve patients in Group B and five patients in Group A had no history of periodontal disease. The MBL was measured radiographically from the most coronal point of the implant shoulder to the alveolar bone, and the RM-AC distance was measured from the restoration margin to the alveolar crest. Multinomial logistic regression analysis was used for statistical evaluation. RESULTS The incidence of MBL in Group A was statistically significant and 3.42 times higher than that in Group B. The rate of MBL in periodontitis Stage 4 was found to be 26.31 times higher than that in periodontitis Stage 2. The incidence of MBL was 6.097 and 5.02 times higher with increasing implant diameter and length, respectively. CONCLUSION This study conclusively demonstrates that RM-AC distance ≤ 1.5 significantly increases the risk of MBL, particularly in patients with a history of periodontal disease. CLINICAL SIGNIFICANCE This study highlights the critical role of maintaining an RM-AC distance greater than 1.5 mm in the prevention of MBL, particularly in patients with a history of periodontal disease. Since implant diameter and length have a significant impact on the risk of MBL, it emphasizes that implant demographics should also be carefully evaluated.
Collapse
Affiliation(s)
- Suna Selver Basak
- Kutahya Health Sciences University, Faculty of Dentistry, Department of Prosthodontics, Kutahya, Turkey.
| | - Berceste Guler Ayyıldız
- Kutahya Health Sciences University, Faculty of Dentistry, Department of Periodontology, Kutahya, Turkey.
| | - Seyma Eken
- Kutahya Health Sciences University, Faculty of Dentistry, Department of Periodontology, Kutahya, Turkey; Kutahya Health Sciences University, Tavsanlı Vocational School of Health Services, Oral Health Department, Kutahya, Turkey.
| | - Serap Karakıs Akcan
- Istanbul Gelısım University, Faculty of Dentistry, Department of Periodontology, Istanbul, Turkey.
| |
Collapse
|
2
|
Zhu Y, Lu H, Yang S, Liu Y, Zhu P, Li P, Waal YCMD, Visser A, Tjakkes GHE, Li A, Xu S. Predictive factors for the treatment success of peri-implantitis: a protocol for a prospective cohort study. BMJ Open 2024; 14:e072443. [PMID: 38199627 PMCID: PMC10806708 DOI: 10.1136/bmjopen-2023-072443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 11/30/2023] [Indexed: 01/12/2024] Open
Abstract
INTRODUCTION Peri-implantitis, a common biological complication of dental implant, has attracted considerable attention due to its increasing prevalence and limited treatment efficacy. Previous studies have reported several risk factors associated with the onset of peri-implantitis (eg, history of periodontitis, poor plaque control and smoking). However, inadequate data are available on the association between these risk factors and successful outcome after peri-implantitis therapy. This prospective cohort study aims to identify the local and systemic predictive factors for the treatment success of peri-implantitis. METHODS AND ANALYSIS A single-centre cohort study will be conducted by recruiting 275 patients diagnosed with peri-implantitis. Sociodemographic variables, healthy lifestyles and systemic disorders will be obtained using questionnaires. In addition, clinical and radiographic examinations will be conducted at baseline and follow-up visits. Treatment success is defined as no bleeding on probing on more than one point, no suppuration, no further marginal bone loss (≥0.5 mm) and probing pocket depth ≤5 mm at the 12-month follow-up interval. After adjustment for age, sex and socioeconomic status, potential prognostic factors related to treatment success will be identified using multivariable logistic regression models. ETHICS AND DISSEMINATION This cohort study in its current version (2.0, 15 July 2022) is in accordance with the Declaration of Helsinki and was approved by the Ethics Committee of Stomatological Hospital, Southern Medical University (EC-CT-(2022)34). The publication will be on behalf of the study site. TRIAL REGISTRATION NUMBER ChiCTR2200066262.
Collapse
Affiliation(s)
- Yuanxi Zhu
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Hongye Lu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Dental Biomaterials and Devices for Zhejiang Provincial Engineering Research Center, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Zhejiang University, Hangzhou, China
| | - Shuo Yang
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Yang Liu
- Department of Oral Medicine, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Peijun Zhu
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Ping Li
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Yvonne C M De Waal
- Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Anita Visser
- Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department for Gerodontology, College of Dental Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Geerten-Has E Tjakkes
- Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - An Li
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
- Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Shulan Xu
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| |
Collapse
|
3
|
Lohinai ZM, Ruksakiet K, Földes A, Dinya E, Levine M. Genetic Control of GCF Exudation: Innate Immunity Genes and Periodontitis Susceptibility. Int J Mol Sci 2023; 24:14249. [PMID: 37762554 PMCID: PMC10532312 DOI: 10.3390/ijms241814249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/07/2023] [Accepted: 08/13/2023] [Indexed: 09/29/2023] Open
Abstract
Chronic periodontitis is a bacterial infection associated with dentally adherent biofilm (plaque) accumulation and age-related comorbidities. The disease begins as an inflammatory exudate from gingival margins, gingival crevicular fluid (GCF) in response to biofilm lysine. After a week of experimental gingivitis (no oral hygiene), biofilm lysine concentration was linearly related to biofilm accumulation (plaque index) but to GCF as an arch-shaped double curve which separated 9 strong from 6 weak GCF responders (hosts). Host DNA was examined for single nucleotide polymorphisms (SNPs) of alleles reported in 7 periodontitis-associated genes. Across all 15 hosts, an adenine SNP (A) at IL1B-511 (rs16944), was significant for strong GCF (Fisher's exact test, p < 0.05), and a thymidine SNP (T) at IL1B+3954 (rs1143634) for weak GCF provided 2 hosts possessing IL6-1363(T), rs2069827, were included. The phenotype of IL1B+3954(T) was converted from weak to strong in one host, and of the non-T allele from strong to weak in the other (specific epistasis, Fisher's exact test, p < 0.01). Together with homozygous alternate or reference SNPs at IL10-1082 or CD14-260 in 4 hosts, all hosts were identified as strong or weak GCF responders. The GCF response is therefore a strong or weak genetic trait that indicates strong or weak innate immunity in EG and controllable or uncontrollable periodontal disease, dental implant survival and late-life comorbidities.
Collapse
Affiliation(s)
- Zsolt M. Lohinai
- Department of Restorative Dentistry and Endodontics, Semmelweis University, H-1088 Budapest, Hungary;
| | - Kasidid Ruksakiet
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (K.R.); (A.F.)
- Department of Restorative Dentistry, Faculty of Dentistry, Naresuan University, Phitsanulok 65000, Thailand
| | - Anna Földes
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (K.R.); (A.F.)
| | - Elek Dinya
- Digital Health Department, Semmelweis University, H-1094 Budapest, Hungary;
| | - Martin Levine
- Department of Periodontology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| |
Collapse
|
4
|
Kniha K, Hermanns-Sachweh B, Al-Sibai F, Kneer R, Möhlhenrich SC, Heitzer M, Hölzle F, Modabber A. Effect of thermal osteonecrosis around implants in the rat tibia: numerical and histomorphometric results in context of implant removal. Sci Rep 2022; 12:22227. [PMID: 36564495 PMCID: PMC9789117 DOI: 10.1038/s41598-022-25581-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/01/2022] [Indexed: 12/24/2022] Open
Abstract
The purpose of this rat study was to explore the feasibility of in vivo temperature thresholds affecting bone contact at the implant surface. Based on these data, thermal necrosis should be used for implant removal in the subsequent in vivo study. Rat tibiae of 48 animals at one site were randomly treated with heat or cold before implant insertion. Temperatures of 4 °C, 3 °C, 2 °C, 48 °C, 49 °C and 50 °C for a tempering time of 1 min were evaluated. Numerical simulations of the heat source-implant-bone system were carried out. Effects were assessed by histomorphometrical measurements. The results showed that the selected method of direct tempering using a tempering pin was suitable for maintaining a uniform layer around the pin. Starting at warm temperatures of 48 °C and rising to 50 °C, the BIC ratio revealed declining values and a significant difference was observed when comparing 50 °C to the control group (p = 0.03). However, there were no significant variations within the cold temperatures. This study pinpointed temperature discovered that could lead to the thermo-explantation and so that the number of samples used in future studies on temperature-induced bone necrosis can be reduced to a minimum. Significant BIC value reduction was seen at a temperature of 50 °C for 1 min.
Collapse
Affiliation(s)
- Kristian Kniha
- grid.412301.50000 0000 8653 1507Department of Oral and Cranio-Maxillofacial Surgery, University Hospital, RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany ,Private Clinic for Oral Surgery Dres. Kniha, Rosental 6, 80331 Munich, Germany
| | - Benita Hermanns-Sachweh
- Private Institute for Implant Pathology, ZBMT, Campus Melaten, Pauwelsstaße 17, Aachen, Germany
| | - Faruk Al-Sibai
- grid.1957.a0000 0001 0728 696XInstitute of Heat and Mass Transfer, RWTH Aachen University, Augustinerbach 6, Aachen, Germany
| | - Reinhold Kneer
- grid.1957.a0000 0001 0728 696XInstitute of Heat and Mass Transfer, RWTH Aachen University, Augustinerbach 6, Aachen, Germany
| | - Stephan Christian Möhlhenrich
- grid.412581.b0000 0000 9024 6397Department of Orthodontics, University of Witten/Herdecke, Alfred-Herrhausen Str. 45, 58455 Witten, Germany
| | - Marius Heitzer
- grid.412301.50000 0000 8653 1507Department of Oral and Cranio-Maxillofacial Surgery, University Hospital, RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany
| | - Frank Hölzle
- grid.412301.50000 0000 8653 1507Department of Oral and Cranio-Maxillofacial Surgery, University Hospital, RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany
| | - Ali Modabber
- grid.412301.50000 0000 8653 1507Department of Oral and Cranio-Maxillofacial Surgery, University Hospital, RWTH Aachen, Pauwelstraße 30, 52074 Aachen, Germany
| |
Collapse
|