1
|
Xie C, Li Y, Liu K, Liu J, Zeng J, Huang N, Yang S. A hybrid unsupervised clustering method for predicting the risk of dental implant loss. J Dent 2024; 149:105260. [PMID: 39096996 DOI: 10.1016/j.jdent.2024.105260] [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: 04/20/2024] [Revised: 07/05/2024] [Accepted: 07/22/2024] [Indexed: 08/05/2024] Open
Abstract
OBJECTIVES The aim of this study was to predict the risk of dental implant loss by clustering features associated with implant survival rates. MATERIALS AND METHODS Multiple clinical features from 8513 patients who underwent single implant placement were retrospectively analysed. A hybrid method integrating unsupervised learning algorithms with survival analysis was employed for data mining. Two-step cluster, univariate Cox regression, and Kaplan‒Meier survival analyses were performed to identify the clustering features associated with implant survival rates. To predict the risk of dental implant loss, nomograms were constructed on the basis of time-stratified multivariate Cox regression. RESULTS Six clusters with distinct features and prognoses were identified using two-step cluster analysis and Kaplan‒Meier survival analysis. Compared with the other clusters, only one cluster presented significantly lower implant survival rates, and six specific clustering features within this cluster were identified as high-risk factors, including age, smoking history, implant diameter, implant length, implant position, and surgical procedure. Nomograms were created to assess the impact of the six high-risk factors on implant loss for three periods: 1) 0-120 days, 2) 120-310 days, and 3) more than 310 days after implant placement. The concordance indices of the models were 0.642, 0.781, and 0.715, respectively. CONCLUSIONS The hybrid unsupervised clustering method, which clusters and identifies high-risk clinical features associated with implant loss without relying on predefined labels or target variables, represents an effective approach for developing a visual model for predicting implant prognosis. However, further validation with a multimodal, multicentre, prospective cohort is needed. CLINICAL SIGNIFICANCE Visual prognosis prediction utilizing this nomogram that predicts the risk of implant loss on the basis of clustering features can assist dentists in preoperative assessments and clinical decision-making, potentially improving dental implant prognosis.
Collapse
Affiliation(s)
- Chenxi Xie
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, PR China; Chongqing Key Laboratory of Oral Diseases, Chongqing, 401147, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, PR China
| | - Yuzhou Li
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, PR China; Chongqing Key Laboratory of Oral Diseases, Chongqing, 401147, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, PR China
| | - Kehao Liu
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, PR China; Chongqing Key Laboratory of Oral Diseases, Chongqing, 401147, PR China
| | - Jiahui Liu
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, PR China; Chongqing Key Laboratory of Oral Diseases, Chongqing, 401147, PR China
| | - Jie Zeng
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, PR China; Chongqing Key Laboratory of Oral Diseases, Chongqing, 401147, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, PR China
| | - Nannan Huang
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, PR China; Chongqing Key Laboratory of Oral Diseases, Chongqing, 401147, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, PR China.
| | - Sheng Yang
- The Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, PR China; Chongqing Key Laboratory of Oral Diseases, Chongqing, 401147, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, PR China.
| |
Collapse
|
2
|
da Rosa de Souza PT, Manfro R, de Salles Santos FAO, Garcia GFF, Macedo NF, de Macedo BESF, Ignácio SA, Rosa EAR, de Souza EM, Azevedo-Alanis LR. Analysis of osseointegration of implants with macrogeometries with healing chambers: a randomized clinical trial. BMC Oral Health 2024; 24:1114. [PMID: 39300380 DOI: 10.1186/s12903-024-04857-8] [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: 07/21/2024] [Accepted: 09/03/2024] [Indexed: 09/22/2024] Open
Abstract
BACKGROUND To verify the influence of macrogeometry with healing chambers on the osseointegration of dental implants by analyzing implant stability quotient (ISQ) and evaluate the correlation between insertion torque and ISQ insertion with different macrogeometries. METHODS In total, 26 implants were installed in the posterior mandible of eight patients with sufficient bone height for the installation of implants measuring 3.5 mm in diameter and 9.0 mm in length. The implants were categorized according to two types of macrogeometry: a test group (GT) with 13 conical implants with healing chambers and a control group (GC) with 13 conical implants with conventional threads. To insert the implants, a bone drilling protocol was used up to a diameter of 3 mm with the last helical bur. The insertion torque of the implants was evaluated, followed by the measurement of ISQ at 0 (T-0), 7 (T-7), 14 (T-14), 21 (T-21), 28 (T-28), and 42 (T-42) days. RESULTS The mean insertion torque was 43 Ncm in both groups, without a significant difference. Moreover, no significant difference in the ISQ values was found between the groups at different time points (p > 0.05), except at T-7 (GT = 69.87±1.89 and GC = 66.48±4.49; p = 0.01). Although there was no significant difference, ISQ median values were higher in the GT group than GC group at 28 days (GT = 67.98 and GC = 63.46; p = 0.05) and 42 days (GT = 66.12 and GC = 60.33; p = 0.09). No correlation was found between the insertion torque and ISQ insertion (p > 0.05). CONCLUSION Furthermore, implants with a 3.5 mm diameter macrogeometry, with or without healing chambers, inserted with a drilling protocol up to 3 mm in diameter of the last helical bur, led to a similar secondary stability, with no difference in ISQ values. Although, implants with healing chamber demonstrates ascending values in the graph of ISQ, having a trend of faster osseointegration than implants without healing chambers. Both macrogeometries provide a similar primary stability to implants. TRIAL REGISTRATION This study was registered retrospectively in ReBec (brazilian registry of clinical trials) under the number RBR-96n5×69, on the date of 19/06/2023.
Collapse
Affiliation(s)
| | - Rafael Manfro
- Graduate Program in Dentistry, Universidade do Sul de Santa Catarina, Palhoça, Santa Catarina, Brazil
| | | | | | - Nayara Flores Macedo
- Graduate Program in Dentistry, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | | | - Sérgio Aparecido Ignácio
- Graduate Program in Dentistry, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | | | - Evelise Machado de Souza
- Graduate Program in Dentistry, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | | |
Collapse
|
3
|
Romero-Serrano M, Romero-Ruiz MM, Herrero-Climent M, Rios-Carrasco B, Gil-Mur J. Correlation between Implant Surface Roughness and Implant Stability: A Systematic Review. Dent J (Basel) 2024; 12:276. [PMID: 39329842 PMCID: PMC11430827 DOI: 10.3390/dj12090276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 08/07/2024] [Accepted: 08/20/2024] [Indexed: 09/28/2024] Open
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 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.
Collapse
Affiliation(s)
- Marta Romero-Serrano
- Department of Periodontology, School of Dentistry, Universidad de Seville, C/Avicena S/N, 41009 Seville, Spain
| | - Manuel-María Romero-Ruiz
- Department of Periodontology, School of Dentistry, Universidad de Seville, C/Avicena S/N, 41009 Seville, Spain
| | - Mariano Herrero-Climent
- Department of Periodontology, School of Dentistry, Universidad de Seville, C/Avicena S/N, 41009 Seville, Spain
- Porto Dental Institute, Periodontology Department, Symmetrya Prothesis, Av. de Montevideu 810, 4150-518 Porto, Portugal
| | - Blanca Rios-Carrasco
- Department of Periodontology, School of Dentistry, Universidad de Seville, C/Avicena S/N, 41009 Seville, Spain
| | - Javier Gil-Mur
- Bioengineering Institute of Technology, Faculty of Medicine and Health Sciences, Universidad International de Cataluña, C/Josep Trueta s/n, Sant Cugat del Vallés, 08195 Barcelona, Spain
| |
Collapse
|
4
|
Bérczy K, Göndöcs G, Komlós G, Shkolnik T, Szabó G, Németh Z. Outcomes of treatment with short dental implants compared with standard-length implants: a retrospective clinical study. Maxillofac Plast Reconstr Surg 2024; 46:6. [PMID: 38416263 PMCID: PMC10902233 DOI: 10.1186/s40902-024-00419-8] [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: 12/22/2023] [Accepted: 02/13/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND The size of dental implants is a key success factor for appropriate osseointegration. Using shorter implants allows the possibility of avoiding complex surgical procedures and reduces the morbidity of treatment. Shorter implants also enable implant-prosthetic rehabilitation after maxillofacial reconstructions where only limited bone is available. In this study, the success rates of short implants were examined and compared to those of standard-sized implants. METHODS Patients who received dental implants between 2007 and 2016 at the Department of Oro-Maxillofacial Surgery and Stomatology Semmelweis University were enrolled in the study. Several clinical parameters were recorded and supplemented with radiological examinations. The data were statistically analysed. RESULTS Thirty-four patients with a total of 60 implants were included. The average time after prosthetic loading was 39.33 ± 21.96 months in the group with 8-mm implants and 41.6 ± 27.5 months in the group with > 8-mm implants. No significant differences were observed between the two groups in terms of probing depth (short implants, 2.84 ± 0.09 mm; standard implants, 2.91 ± 0.35 mm) or mean marginal bone loss (short implants, 1.2 ± 1.21-mm mesially and 1.36 ± 1.47-mm distally; standard implants: 0.63 ± 0.80-mm mesially and 0.78 ± 0.70-mm distally). CONCLUSIONS In this study, the success rate of short dental implants was comparable to that of standard-sized implants. Consequently, it can be claimed that the long-term success of short dental implants does not differ significantly from the long-term success of standard implants.
Collapse
Affiliation(s)
- Kinga Bérczy
- Faculty of Dentistry, Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, Mária Street 52, 1085, Budapest, Hungary.
| | - György Göndöcs
- Faculty of Dentistry, Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, Mária Street 52, 1085, Budapest, Hungary
| | - György Komlós
- Faculty of Dentistry, Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, Mária Street 52, 1085, Budapest, Hungary
| | - Tatiana Shkolnik
- Faculty of Dentistry, Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, Mária Street 52, 1085, Budapest, Hungary
| | - György Szabó
- Faculty of Dentistry, Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, Mária Street 52, 1085, Budapest, Hungary
| | - Zsolt Németh
- Faculty of Dentistry, Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, Mária Street 52, 1085, Budapest, Hungary
| |
Collapse
|
5
|
Báskay J, Pénzes D, Kontsek E, Pesti A, Kiss A, Guimarães Carvalho BK, Szócska M, Szabó BT, Dobó-Nagy C, Csete D, Mócsai A, Németh O, Pollner P, Mijiritsky E, Kivovics M. Are Artificial Intelligence-Assisted Three-Dimensional Histological Reconstructions Reliable for the Assessment of Trabecular Microarchitecture? J Clin Med 2024; 13:1106. [PMID: 38398417 PMCID: PMC10889719 DOI: 10.3390/jcm13041106] [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: 01/08/2024] [Revised: 02/04/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Objectives: This study aimed to create a three-dimensional histological reconstruction through the AI-assisted classification of tissues and the alignment of serial sections. The secondary aim was to evaluate if the novel technique for histological reconstruction accurately replicated the trabecular microarchitecture of bone. This was performed by conducting micromorphometric measurements on the reconstruction and comparing the results obtained with those of microCT reconstructions. Methods: A bone biopsy sample was harvested upon re-entry following sinus floor augmentation. Following microCT scanning and histological processing, a modified version of the U-Net architecture was trained to categorize tissues on the sections. Detector-free local feature matching with transformers was used to create the histological reconstruction. The micromorphometric parameters were calculated using Bruker's CTAn software (version 1.18.8.0, Bruker, Kontich, Belgium) for both histological and microCT datasets. Results: Correlation coefficients calculated between the micromorphometric parameters measured on the microCT and histological reconstruction suggest a strong linear relationship between the two with p-values of 0.777, 0.717, 0.705, 0.666, and 0.687 for BV/TV, BS/TV, Tb.Pf Tb.Th, and Tb.Sp, respectively. Bland-Altman and mountain plots suggest good agreement between BV/TV measurements on the two reconstruction methods. Conclusions: This novel method for three-dimensional histological reconstruction provides researchers with a tool that enables the assessment of accurate trabecular microarchitecture and histological information simultaneously.
Collapse
Affiliation(s)
- János Báskay
- Data-Driven Health Division of National Laboratory for Health Security, Health Services Management Training Centre, Semmelweis University, Kútvölgyi út 2, 1125 Budapest, Hungary; (J.B.); (M.S.); (P.P.)
- Department of Biological Physics, Eötvös Loránd University, Pázmány Péter Sétány 1/a, 1117 Budapest, Hungary
| | - Dorottya Pénzes
- Department of Community Dentistry, Semmelweis University, Szentkirályi Utca 40, 1088 Budapest, Hungary; (D.P.); (B.K.G.C.); (O.N.)
| | - Endre Kontsek
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Üllői út 93, 1091 Budapest, Hungary; (E.K.); (A.P.); (A.K.)
| | - Adrián Pesti
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Üllői út 93, 1091 Budapest, Hungary; (E.K.); (A.P.); (A.K.)
| | - András Kiss
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Üllői út 93, 1091 Budapest, Hungary; (E.K.); (A.P.); (A.K.)
| | | | - Miklós Szócska
- Data-Driven Health Division of National Laboratory for Health Security, Health Services Management Training Centre, Semmelweis University, Kútvölgyi út 2, 1125 Budapest, Hungary; (J.B.); (M.S.); (P.P.)
| | - Bence Tamás Szabó
- Department of Oral Diagnostics, Semmelweis University, Szentkirályi Utca 47, 1088 Budapest, Hungary; (B.T.S.); (C.D.-N.)
| | - Csaba Dobó-Nagy
- Department of Oral Diagnostics, Semmelweis University, Szentkirályi Utca 47, 1088 Budapest, Hungary; (B.T.S.); (C.D.-N.)
| | - Dániel Csete
- Department of Physiology, Semmelweis University, Tűzoltó u. 34-37, 1094 Budapest, Hungary; (D.C.); (A.M.)
| | - Attila Mócsai
- Department of Physiology, Semmelweis University, Tűzoltó u. 34-37, 1094 Budapest, Hungary; (D.C.); (A.M.)
| | - Orsolya Németh
- Department of Community Dentistry, Semmelweis University, Szentkirályi Utca 40, 1088 Budapest, Hungary; (D.P.); (B.K.G.C.); (O.N.)
| | - Péter Pollner
- Data-Driven Health Division of National Laboratory for Health Security, Health Services Management Training Centre, Semmelweis University, Kútvölgyi út 2, 1125 Budapest, Hungary; (J.B.); (M.S.); (P.P.)
- Department of Biological Physics, Eötvös Loránd University, Pázmány Péter Sétány 1/a, 1117 Budapest, Hungary
| | - Eitan Mijiritsky
- Department of Head and Neck Surgery and Maxillofacial Surgery, Tel-Aviv Sourasky Medical Center, School of Medicine, Tel Aviv University, Tel Aviv 64239, Israel;
- Goldschleger School of Dental Medicine, Faculty of Medicine, Tel Aviv University, Tel Aviv 39040, Israel
| | - Márton Kivovics
- Department of Community Dentistry, Semmelweis University, Szentkirályi Utca 40, 1088 Budapest, Hungary; (D.P.); (B.K.G.C.); (O.N.)
| |
Collapse
|
6
|
Palkovics D, Rider P, Rogge S, Kačarević ŽP, Windisch P. Possible Applications for a Biodegradable Magnesium Membrane in Alveolar Ridge Augmentation-Retrospective Case Report with Two Years of Follow-Up. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1698. [PMID: 37893416 PMCID: PMC10608771 DOI: 10.3390/medicina59101698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/06/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023]
Abstract
Background and Objectives: A rigid, resorbable magnesium membrane was recently developed, combining the advantages of resorbable and non-resorbable membranes. Our aim was to describe the application of this membrane for guided bone regeneration (GBR). Materials and Methods: This case report described the treatment and 3D evaluation of two cases utilizing a resorbable magnesium barrier membrane. In Case #1, GBR was performed with a bilayer tunnel flap. The magnesium barrier was placed fixed subperiosteally through remote vertical incisions. In Case #2, GBR was performed using a split-thickness flap design. Volumetric and linear hard tissue alterations were assessed by 3D cone-beam computed tomography subtraction analysis, as well as with conventional intraoral radiography. Results: Case #1 showed a volumetric hard tissue gain of 0.12 cm3, whereas Case #2 presented a 0.36 cm3 hard tissue gain. No marginal peri-implant hard tissue loss could be detected at the two-year follow-up. Conclusions: The application of conventional resorbable collagen membranes would be difficult in either of the cases presented. However, the rigid structure of the magnesium membrane allowed for the limitations of conventional resorbable membranes to be overcome.
Collapse
Affiliation(s)
- Daniel Palkovics
- Department of Periodontology, Semmelweis University, Szentkirályi Utca 47, 1088 Budapest, Hungary;
| | - Patrick Rider
- Botiss Medical AG, Ullsteinstraße 108, 12109 Berlin, Germany; (P.R.); (S.R.); (Ž.P.K.)
| | - Svenja Rogge
- Botiss Medical AG, Ullsteinstraße 108, 12109 Berlin, Germany; (P.R.); (S.R.); (Ž.P.K.)
| | - Željka Perić Kačarević
- Botiss Medical AG, Ullsteinstraße 108, 12109 Berlin, Germany; (P.R.); (S.R.); (Ž.P.K.)
- Department of Anatomy Histology and Embryology, Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University, Ul. Cara Hadrijana 8/A, 31000 Osijek, Croatia
| | - Peter Windisch
- Department of Periodontology, Semmelweis University, Szentkirályi Utca 47, 1088 Budapest, Hungary;
| |
Collapse
|
7
|
Inchingolo AM, Malcangi G, Ferrante L, Del Vecchio G, Viapiano F, Inchingolo AD, Mancini A, Annicchiarico C, Inchingolo F, Dipalma G, Minetti E, Palermo A, Patano A. Surface Coatings of Dental Implants: A Review. J Funct Biomater 2023; 14:jfb14050287. [PMID: 37233397 DOI: 10.3390/jfb14050287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 05/27/2023] Open
Abstract
Replacement of missing teeth is possible using biocompatible devices such as endosseous implants. This study aims to analyze and recognize the best characteristics of different implant surfaces that ensure good peri-implant tissue healing and thus clinical success over time. The present review was performed on the recent literature concerning endosseous implants made of titanium, a material most frequently used because of its mechanical, physical, and chemical characteristics. Thanks to its low bioactivity, titanium exhibits slow osseointegration. Implant surfaces are treated so that cells do not reject the surface as a foreign material and accept it as fully biocompatible. Analysis of different types of implant surface coatings was performed in order to identify ideal surfaces that improve osseointegration, epithelial attachment to the implant site, and overall peri-implant health. This study shows that the implant surface, with different adhesion, proliferation, and spreading capabilities of osteoblastic and epithelial cells, influences the cells involved in anchorage. Implant surfaces must have antibacterial capabilities to prevent peri-implant disease. Research still needs to improve implant material to minimize clinical failure.
Collapse
Affiliation(s)
| | - Giuseppina Malcangi
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Laura Ferrante
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Gaetano Del Vecchio
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Fabio Viapiano
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | | | - Antonio Mancini
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Ciro Annicchiarico
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Francesco Inchingolo
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Gianna Dipalma
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Elio Minetti
- Department of Biomedical, Surgical, and Dental Science, University of Milan, 20122 Milan, Italy
| | - Andrea Palermo
- College of Medicine and Dentistry Birmingham, University of Birmingham, Birmingham B4 6BN, UK
| | - Assunta Patano
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| |
Collapse
|
8
|
Collins JR, Ogando BP, Hong H, Hou W, Romanos GE. Clinical and Radiographic Evaluation of a Novel Triangular Implant Neck Design: A Case Series. Dent J (Basel) 2022; 10:dj10060113. [PMID: 35735655 PMCID: PMC9221962 DOI: 10.3390/dj10060113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/06/2022] [Accepted: 06/15/2022] [Indexed: 02/04/2023] Open
Abstract
The objective of this study was to evaluate the clinical and radiographic behavior of a novel triangular neck implant configuration in partially edentulous patients. Sixteen patients with a mean age of 58.3 years, were rehabilitated with 25 implants inserted in the healed sites of the maxilla and mandible; implant diameter was Ø3.3 and 3.9 mm. Clinical and radiographic measurements were first performed at prosthesis delivery that served as baseline; they were further evaluated after a mean period of 15.6 months. The interproximal peri-implant bone levels were the primary outcome; the mesial and distal data were recorded and a mean value was calculated. Secondary outcomes included peri-implant probing depth (PPD) and bleeding on probing (BoP). The paired t-test was used to compare the radiographic and clinical outcomes between baseline and follow-up. The mean bone levels at the mesial and distal aspects at baseline were 0.45 (0.47) and 0.57 (0.69), respectively; at follow-up they were 0.59 (0.42) and 0.78 (0.59), respectively. The differences were not statistically significant. Similarly, no significant differences were found for the clinical parameters. Within the limitations of the present study, it could be concluded that this new triangular neck bone level implant macro-design was used successfully to treat partially edentulous patients. Larger controlled clinical studies are warranted to confirm the present radiographic and clinical findings.
Collapse
Affiliation(s)
- James Rudolph Collins
- Department of Periodontology, School of Dentistry, Pontificia Universidad Católica Madre y Maestra (PUCMM), Santo Domingo 10109, Dominican Republic; (J.R.C.); (B.P.O.)
| | - Brendha P. Ogando
- Department of Periodontology, School of Dentistry, Pontificia Universidad Católica Madre y Maestra (PUCMM), Santo Domingo 10109, Dominican Republic; (J.R.C.); (B.P.O.)
| | - Houlin Hong
- School of Public Health & Health Policy, City University of New York, New York, NY 10031, USA;
| | - Wei Hou
- Department of Family, Population and Preventive Medicine, School of Medicine, Stony Brook University, New York, NY 11794, USA;
| | - Georgios E. Romanos
- Department of Periodontology, School of Dental Medicine, Stony Brook University, New York, NY 11794, USA
- Correspondence:
| |
Collapse
|
9
|
Novel In Situ-Cross-Linked Electrospun Gelatin/Hydroxyapatite Nonwoven Scaffolds Prove Suitable for Periodontal Tissue Engineering. Pharmaceutics 2022; 14:pharmaceutics14061286. [PMID: 35745858 PMCID: PMC9230656 DOI: 10.3390/pharmaceutics14061286] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/03/2022] [Accepted: 06/14/2022] [Indexed: 12/23/2022] Open
Abstract
Periodontal diseases affect millions of people worldwide and can result in tooth loss. Regenerative treatment options for clinical use are thus needed. We aimed at developing new nonwoven-based scaffolds for periodontal tissue engineering. Nonwovens of 16% gelatin/5% hydroxyapatite were produced by electrospinning and in situ glyoxal cross-linking. In a subset of scaffolds, additional porosity was incorporated via extractable polyethylene glycol fibers. Cell colonization and penetration by human mesenchymal stem cells (hMSCs), periodontal ligament fibroblasts (PDLFs), or cocultures of both were visualized by scanning electron microscopy and 4′,6-diamidin-2-phenylindole (DAPI) staining. Metabolic activity was assessed via Alamar Blue® staining. Cell type and differentiation were analyzed by immunocytochemical staining of Oct4, osteopontin, and periostin. The electrospun nonwovens were efficiently populated by both hMSCs and PDLFs, while scaffolds with additional porosity harbored significantly more cells. The metabolic activity was higher for cocultures of hMSCs and PDLFs, or for PDLF-seeded scaffolds. Periostin and osteopontin expression was more pronounced in cocultures of hMSCs and PDLFs, whereas Oct4 staining was limited to hMSCs. These novel in situ-cross-linked electrospun nonwoven scaffolds allow for efficient adhesion and survival of hMSCs and PDLFs. Coordinated expression of differentiation markers was observed, which rendered this platform an interesting candidate for periodontal tissue engineering.
Collapse
|