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Nilsson G, Ellner S, Arnebrant L, Brudin L, Larsson C. Loss of pulp vitality correlated with the duration of the interim restoration and the experience of the dentist: A retrospective study. J Prosthet Dent 2023; 130:833-839. [PMID: 35105459 DOI: 10.1016/j.prosdent.2021.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 11/19/2021] [Accepted: 11/19/2021] [Indexed: 11/28/2022]
Abstract
STATEMENT OF PROBLEM The second most common biological complication in fixed prosthodontics is loss of pulp vitality, which may lead to restoration loss. While reasons for loss of pulp vitality are unclear, 2 potential contributing factors, duration of the interim restoration and operator experience, have not been fully investigated. PURPOSE The purpose of this retrospective study was to investigate whether the duration of the interim restoration or the experience of the dentist was correlated with loss of pulp vitality. MATERIAL AND METHODS Fixed prosthetic restorations placed between 2005 and 2012 were retrospectively analyzed. Abutment teeth supporting single-unti or multiunit restorations were evaluated regarding loss of pulp vitality. The Mann-Whitney U test and simple logistic regression were used, with α=.05 for the subsequent multiple logistic regression. The experience of dental professionals was defined by the number of treatments performed and coupled with failure rate by using an analysis of variance. RESULTS One hundred seventy-four dentists made 15 879 restorations, of which 1136 failed during the observation period, a failure rate of 7.2%. Two hundred fifty restorations were randomly selected from the failed restorations, and a corresponding 250 restorations were randomly selected from nonfailed restorations for the control group. Increased duration with interim replacement was linked to a higher risk of loss of pulp vitality (P<.001). Failure rate in the dentist group varied from 0% to 100%. No significant differences in failure rate were found among dentists who did few restorations and those who performed larger numbers of restorations. CONCLUSIONS The results of the present study suggest that operator experience does not affect failure rate. However, extended time with an interim restoration was a contributing factor to the loss of pulp vitality.
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Affiliation(s)
- Göran Nilsson
- Senior consultant, Specialist in prosthetic Dentistry, Department of Prosthetic Dentistry Specialist clinic, Kalmar County Public Dental Service, Kalmar, Sweden.
| | - Stefan Ellner
- Senior consultant, Specialist in prosthetic Dentistry, Department of Prosthetic Dentistry Specialist clinic, Kalmar County Public Dental Service, Kalmar, Sweden
| | - Liselott Arnebrant
- Professor emerita, Department of Prosthodontics, Faculty of Odontology, Malmö, Sweden
| | - Lars Brudin
- Adjunct, Department of Clinical Physiology, Kalmar County and Department of Medical and Health Sciences, Linköping University, Kalmar, Sweden
| | - Christel Larsson
- Associate Professor, Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
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2
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Jang KA, Kim YR, Joo K, Son M. Chronic periodontitis and risk of cerebro-cardiovascular diseases among older Koreans. Gerodontology 2023. [PMID: 37847802 DOI: 10.1111/ger.12722] [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] [Accepted: 10/07/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND AND OBJECTIVE There is a relative lack of evidence from observational studies of older populations investigating the association between chronic periodontitis and cerebro-cardiovascular diseases. Accordingly, we investigated the risk of cerebro-cardiovascular diseases according to the severity of chronic periodontitis among older adults. METHODS Data on older adults with chronic periodontitis were extracted from the Korea National Health Insurance Service-Senior Cohort Database using diagnosis codes and dental procedures. Participants were divided into two exposure groups. Among 46 737 participants eligible for inclusion, 21 905 (46.9%) had newly diagnosed mild chronic periodontitis, and 24 832 (53.1%) had newly diagnosed severe chronic periodontitis. To determine the risk of cerebro-cardiovascular diseases, including ischemic stroke, haemorrhagic stroke, and myocardial infarction, multivariable-adjusted Cox proportional hazards modelling was used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) in this retrospective follow-up study. RESULTS A total of 3453 (7.4%) outcomes were identified during a mean follow-up of 6.1 years. Kaplan-Meier analysis revealed that disease-free probability was lower in the severe group than in the mild group (log-rank P < .001). In the multivariable-adjusted model, the HR for cerebro-cardiovascular diseases in the severe group (relative to the mild group) was 1.16 (95% CI: 1.09-1.25). In individual outcome analysis, ischemic stroke and myocardial infarction were associated with chronic periodontitis severity, but haemorrhagic stroke was not. CONCLUSION The severity of chronic periodontitis could be associated with the risk of cerebro-cardiovascular diseases in older adults.
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Affiliation(s)
- Kyeung-Ae Jang
- Department of Dental Hygiene, Silla University, Busan, Korea
| | - Yu-Rin Kim
- Department of Dental Hygiene, Silla University, Busan, Korea
| | - Kwangmin Joo
- Department of Internal Medicine, Dong-A University Hospital, Busan, Korea
| | - Minkook Son
- Department of Physiology, Dong-A University College of Medicine, Busan, Korea
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Liu Y, He M, Yin T, Zheng Z, Fang C, Peng S. Association of severely damaged endodontically infected tooth with carotid plaque and abnormal carotid intima-media thickness: a retrospective analysis. Clin Oral Investig 2023; 27:4677-4686. [PMID: 37294352 DOI: 10.1007/s00784-023-05094-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 05/22/2023] [Indexed: 06/10/2023]
Abstract
OBJECTIVE We investigated the association of severely damaged endodontically infected tooth with carotid artery plaque and abnormal mean carotid intima-media thickness (CIMT) ≥ 1.0 mm. METHODS A retrospective analysis of 1502 control participants and 1552 participants with severely damaged endodontically infected tooth who received routine medical and dental checkup in Health Management Center, Xiangya Hospital was performed. Carotid plaque and CIMT were measured with B-mode tomographic ultrasound. Data were analyzed using logistic and linear regression. RESULTS Severely damaged endodontically infected tooth group had a significantly higher prevalence of carotid plaque (41.62%) compared to 32.22% of carotid plaque in control group. Participants with severely damaged endodontically infected tooth had a significantly higher prevalence of abnormal CIMT (16.17%) and a significantly increased level of CIMT (0.79 ± 0.16 mm) in comparison to 10.79% of abnormal CIMT and 0.77 ± 0.14 mm CIMT in control participants. Severely damaged endodontically infected tooth was significantly related with formation of carotid plaque [1.37(1.18-1.60), P < 0.001], top quartile length [1.21(1.02-1.44), P = 0.029] and top quartile thickness [1.27(1.08-1.51), P = 0.005] of carotid plaque and abnormal CIMT [1.47(1.18-1.83), P < 0.001]. Severely damaged endodontically infected tooth was significantly associated with both single [1.277(1.056-1.546), P = 0.012] and multiple carotid plaques [1.488(1.214-1.825), P < 0.001] and instable carotid plaques [1.380(1.167-1.632), P < 0.001]. Presence of severely damaged endodontically infected tooth increased 0.588 mm of carotid plaque length (P = 0.001), 0.157 mm of carotid plaque thickness (P < 0.001) and 0.015 mm of CIMT (P = 0.005). CONCLUSION Severely damaged endodontically infected tooth was associated with carotid plaque and abnormal CIMT. CLINICAL RELEVANCE Early treatment of endodontically infected tooth is warranted.
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Affiliation(s)
- Yundong Liu
- Health Management Center, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China.
| | - Mi He
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
| | - Tao Yin
- Changsha Health Vocational College, Changsha, Hunan, 410605, People's Republic of China
| | - Ziran Zheng
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
| | - Changyun Fang
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
| | - Shifang Peng
- Department of Infectious Diseases, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China.
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Luo X, Wan Q, Cheng L, Xu R. Mechanisms of bone remodeling and therapeutic strategies in chronic apical periodontitis. Front Cell Infect Microbiol 2022; 12:908859. [PMID: 35937695 PMCID: PMC9353524 DOI: 10.3389/fcimb.2022.908859] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/27/2022] [Indexed: 12/19/2022] Open
Abstract
Chronic periapical periodontitis (CAP) is a typical oral disease in which periodontal inflammation caused by an odontogenic infection eventually leads to bone loss. Uncontrolled infections often lead to extensive bone loss around the root tip, which ultimately leads to tooth loss. The main clinical issue in the treatment of periapical periodontitis is the repair of jawbone defects, and infection control is the first priority. However, the oral cavity is an open environment, and the distribution of microorganisms through the mouth in jawbone defects is inevitable. The subversion of host cell metabolism by oral microorganisms initiates disease. The presence of microorganisms stimulates a series of immune responses, which in turn stimulates bone healing. Given the above background, we intended to examine the paradoxes and connections between microorganisms and jaw defect repair in anticipation of new ideas for jaw defect repair. To this end, we reviewed the microbial factors, human signaling pathways, immune cells, and cytokines involved in the development of CAP, as well as concentrated growth factor (CGF) and stem cells in bone defect repair, with the aim of understanding the impact of microbial factors on host cell metabolism to inform the etiology and clinical management of CAP.
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Affiliation(s)
| | | | - Lei Cheng
- *Correspondence: Lei Cheng, ; Ruoshi Xu,
| | - Ruoshi Xu
- *Correspondence: Lei Cheng, ; Ruoshi Xu,
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Alnowailaty Y, Alghamdi F. Prevalence of Endodontically Treated Premolars and Molars With Untreated Canals and Their Association With Apical Periodontitis Using Cone-Beam Computed Tomography. Cureus 2022; 14:e25619. [PMID: 35795507 PMCID: PMC9250691 DOI: 10.7759/cureus.25619] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2022] [Indexed: 11/05/2022] Open
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Aloutaibi YA, Alkarim AS, Qumri EM, Almansour LA, Alghamdi FT. Chronic Endodontic Infections and Cardiovascular Diseases: Does the Evidence Support an Independent Association? Cureus 2021; 13:e19864. [PMID: 34976491 PMCID: PMC8712192 DOI: 10.7759/cureus.19864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2021] [Indexed: 01/08/2023] Open
Abstract
Previous studies have shown that endodontic infections might increase the risk of cardiovascular diseases. However, there is no conclusive evidence that endodontic infections are associated with cardiovascular diseases among individuals with cardiac conditions. This systematic review aimed to collect and evaluate the current evidence on the relationship between chronic endodontic infections and cardiovascular diseases. The PubMed, Scopus, and Web of Science databases were searched, and Google Scholar was used to retrieve relevant clinical studies within the past 10 years (2011-2021). Observational studies (prospective cohort, retrospective cohort, cross-sectional, and case-control studies), which investigated the impact of endodontic infections and apical periodontitis in individuals with cardiac conditions at risk of cardiovascular disease, in English were considered. Review papers, duplicates, animal studies, and other irrelevant studies were excluded. Four investigators independently carried out the study selection and data collection processes. Quality assessment was performed in this review. Fourteen studies with 960,652 human subjects were included in this review. No association between endodontic infections and cardiovascular diseases among individuals with cardiac conditions was noted. Most of the studies showed a moderate overall risk of bias by 57.14% (n=8). There is weak evidence regarding the association between cardiovascular diseases and chronic endodontic infections. Further longitudinal clinical studies are required to determine the association between cardiovascular diseases and endodontic infections.
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Affiliation(s)
- Yaser A Aloutaibi
- Advanced General Dentistry, The University Dental Hospital, King Abdulaziz University, Jeddah, SAU
| | - Abdulaziz S Alkarim
- Advanced General Dentistry, The University Dental Hospital, King Abdulaziz University, Jeddah, SAU
| | - Esraa M Qumri
- Advanced General Dentistry, The University Dental Hospital, King Abdulaziz University, Jeddah, SAU
| | - Lolo A Almansour
- Advanced General Dentistry, The University Dental Hospital, King Abdulaziz University, Jeddah, SAU
| | - Faisal T Alghamdi
- Oral Biology, Faculty of Dentistry, King Abdulaziz University, Jeddah, SAU
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Koletsi D, Iliadi A, Tzanetakis GN, Vavuranakis M, Eliades T. Cardiovascular Disease and Chronic Endodontic Infection. Is There an Association? A Systematic Review and Meta-Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9111. [PMID: 34501699 PMCID: PMC8430722 DOI: 10.3390/ijerph18179111] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 01/09/2023]
Abstract
The aim of the present study was to systematically assess existing evidence on the possible association between chronic endodontic infections and cardiovascular disease (CVD). An electronic database search was implemented until 2 October 2020. The main outcome was risk of CVD diagnosis. Risk of bias was assessed through the ROBINS-I tool, while random effects meta-analyses were conducted. The quality of the evidence was assessed with the Grading of Recommendations Assessment, Development, and Evaluation. Twenty-one studies were eligible for inclusion, while 10 were included in the quantitative synthesis. Risk for CVD diagnosis in patients with chronic endodontic infection was 1.38 times those without infection (RR = 1.38; 95% CIs: 1.06, 1.80; p = 0.008). Risk of bias ranged from moderate to serious, while the quality of the evidence was graded as very low. Indications for an identified association between chronic endodontic infection and CVDs do exist; however, they are not grounded on high-quality evidence at present. Further research for an establishment of an association based on temporal sequence of the two entities and on unbiased well-conducted cohort studies would be highly valued.
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Affiliation(s)
- Despina Koletsi
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, CH-8032 Zurich, Switzerland;
| | - Anna Iliadi
- Department of Dental Biomaterials, School of Dentistry, National and Kapodistrian University of Athens, 10679 Athens, Greece;
| | - Giorgos N. Tzanetakis
- Department of Endodontics, School of Dentistry, National and Kapodistrian University of Athens, 10679 Athens, Greece;
| | - Manolis Vavuranakis
- First Cardiology Department, National and Kapodistrian University of Athens, Hippocration Hospital, 10679 Athens, Greece;
| | - Theodore Eliades
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, CH-8032 Zurich, Switzerland;
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Peršić Bukmir R, Paljević E, Pezelj-Ribarić S, Brekalo Pršo I. Coronal Restoration as a Predictor of Periapical Disease in Non-Endodontically Treated Teeth. Acta Stomatol Croat 2021; 55:56-68. [PMID: 33867538 PMCID: PMC8033623 DOI: 10.15644/asc55/1/7] [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] [Indexed: 11/18/2022] Open
Abstract
Objectives To compare the frequency of apical periodontitis (AP) in non-endodontically treated teeth restored with full coverage crowns, amalgam and resin composite fillings, and to disclose the association of type and quality of coronal restoration with periapical disease. Material and Methods The cross-sectional study involved 597 subjects who attended the Dental Clinic of the Clinical Hospital Centre, Rijeka, Croatia for the first time. Data were collected by means of a clinical and radiological survey. The following data were recorded for all permanently restored non-endodontically treated teeth: the type, the quality of coronal restoration according to clinical and radiographic criteria for marginal integrity as well as the recurrent caries presence, periapical status and marginal bone loss. Chi-square tests were used to analyze the difference in periapical status regarding the type and the quality of restoration. The multivariate logistic regression analysis was used to assess the effect of explanatory tooth-specific variables on periapical status. Results There was no significant difference in the proportion of AP with regards to the type and material of adequate quality coronal restorations (χ2=5.000, P=0.082). The regression analysis revealed significant positive associations with outcome variable (AP) for crowns (OR=3.39; P<0.001), recurrent caries (OR=4.67; P<0.001) and premolar teeth (OR=1.73; P=0.002). Conclusion If the quality of restorations is adequate, there is no difference in the periapical status of non-endodontically treated teeth regarding the type and material of coronal restoration.
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Affiliation(s)
- Romana Peršić Bukmir
- Department of Endodontics and Restorative Dentistry, Rijeka Clinical Hospital Centre, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia
| | - Ema Paljević
- Department of Endodontics and Restorative Dentistry, Rijeka Clinical Hospital Centre, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia
| | - Sonja Pezelj-Ribarić
- Department of Oral Medicine and Periodontology, Rijeka Clinical Hospital Centre, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia
| | - Ivana Brekalo Pršo
- Department of Endodontics and Restorative Dentistry, Rijeka Clinical Hospital Centre, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia
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González-Navarro B, Segura-Egea JJ, Estrugo-Devesa A, Pintó-Sala X, Jane-Salas E, Jiménez-Sánchez MC, Cabanillas-Balsera D, López-López J. Relationship between Apical Periodontitis and Metabolic Syndrome and Cardiovascular Events: A Cross-Sectional Study. J Clin Med 2020; 9:jcm9103205. [PMID: 33020413 PMCID: PMC7600401 DOI: 10.3390/jcm9103205] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/29/2020] [Accepted: 10/02/2020] [Indexed: 12/23/2022] Open
Abstract
Aim: Both apical periodontitis (AP) and metabolic syndrome (MetS) are associated with atherosclerotic cardiovascular disease (ACVD), the main cause of cardiovascular events. The aim of this study was to investigate the prevalence of AP and the oral inflammatory burden in control subjects and patients suffering cardiovascular events, analyzing the possible association between AP and the oral inflammatory burden with MetS. Materials and Methods: Using a cross-sectional design, 83 patients suffering a cardiovascular event were recruited in the study group (SG), and 48 patients without cardiovascular events were included in the control group (CG). Periapical index (PAI) was used to diagnose AP, and total dental index (TDI) was used to assess the total oral inflammatory burden. Diagnosis of MetS was made by meeting three or more American Heart Association Scientific Statement components. Results: In the multivariate logistic regression analysis, the number of teeth with AP (OR = 2.3; 95% C.I. = 1.3–4.3; p = 0.006) and TDI scores (OR = 1.5; 95% C.I. = 1.2–1.9; p = 0.001), significantly correlated with cardiovascular events. MetS was strongly associated (OR = 18.0; 95% C.I. = 6.5–49.7; p = 0000) with cardiovascular events. Higher TDI scores were significantly associated with MetS (OR = 1.3; 95% C.I. = 1.1–1.6; p = 0.003. Neither the number of root-filled teeth (RFT) (OR = 0.9; 95% C.I. = 0.6–1.3; p = 0.61) nor the number of teeth with apical periodontitis (OR = 1.1; 95% C.I. = 0.8–1.7; p = 0.49) were associated with MetS. Conclusions: Apical periodontitis is significantly associated with cardiovascular events. Total oral inflammatory burden assessed by TDI, but not AP alone, is associated with MetS.
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Affiliation(s)
- Beatriz González-Navarro
- Department of Odontostomatolgy, School of Medicine and Health Sciences (Dentistry)—Dental Hospital, University of Barcelona, 08970 L’Hospitalet de Llobregat, Barcelona, Spain; (B.G.-N.); (A.E.-D.); (E.J.-S.)
- Oral Health and Masticatory System Group, Bellvitge Biomedical Research Institute, (IDIBELL), 08970 L’Hospitalet de Llobregat, Barcelona, Spain
| | - Juan José Segura-Egea
- Department of Stomatology, School of Dentistry, University of Sevilla, Calle Avicena s/n, 41009 Sevilla, Spain; (M.C.J.-S.); (D.C.-B.)
- Correspondence: (J.J.S.-E.); (J.L.-L.); Tel.: +34-606457362 (J.L.-L.)
| | - Albert Estrugo-Devesa
- Department of Odontostomatolgy, School of Medicine and Health Sciences (Dentistry)—Dental Hospital, University of Barcelona, 08970 L’Hospitalet de Llobregat, Barcelona, Spain; (B.G.-N.); (A.E.-D.); (E.J.-S.)
- Oral Health and Masticatory System Group, Bellvitge Biomedical Research Institute, (IDIBELL), 08970 L’Hospitalet de Llobregat, Barcelona, Spain
| | - Xavier Pintó-Sala
- Vascular Risk Unit, Department of Internal Medicine, Bellvitge University Hospital, 08970 L’Hospitalet de Llobregat, Barcelona, Spain;
| | - Enric Jane-Salas
- Department of Odontostomatolgy, School of Medicine and Health Sciences (Dentistry)—Dental Hospital, University of Barcelona, 08970 L’Hospitalet de Llobregat, Barcelona, Spain; (B.G.-N.); (A.E.-D.); (E.J.-S.)
- Oral Health and Masticatory System Group, Bellvitge Biomedical Research Institute, (IDIBELL), 08970 L’Hospitalet de Llobregat, Barcelona, Spain
| | - Mari Carmen Jiménez-Sánchez
- Department of Stomatology, School of Dentistry, University of Sevilla, Calle Avicena s/n, 41009 Sevilla, Spain; (M.C.J.-S.); (D.C.-B.)
| | - Daniel Cabanillas-Balsera
- Department of Stomatology, School of Dentistry, University of Sevilla, Calle Avicena s/n, 41009 Sevilla, Spain; (M.C.J.-S.); (D.C.-B.)
| | - José López-López
- Department of Odontostomatolgy, School of Medicine and Health Sciences (Dentistry)—Dental Hospital, University of Barcelona, 08970 L’Hospitalet de Llobregat, Barcelona, Spain; (B.G.-N.); (A.E.-D.); (E.J.-S.)
- Oral Health and Masticatory System Group, Bellvitge Biomedical Research Institute, (IDIBELL), 08970 L’Hospitalet de Llobregat, Barcelona, Spain
- Clinical Head of the Odontological Hospital University of Barcelona, University of Barcelona, 08970 L’Hospitalet de LLobregat, Barcelona, Spain
- Correspondence: (J.J.S.-E.); (J.L.-L.); Tel.: +34-606457362 (J.L.-L.)
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