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Sonnenschein SK, Kilian S, Ruetters M, Ciardo A, Kim TS. Changes in periodontal parameters of splinted versus non-splinted posterior teeth during ten years of supportive periodontal therapy - A retrospective evaluation. Clin Oral Investig 2024; 28:283. [PMID: 38683397 PMCID: PMC11058677 DOI: 10.1007/s00784-024-05679-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 04/22/2024] [Indexed: 05/01/2024]
Abstract
OBJECTIVES To compare periodontal parameters of splinted posterior teeth versus control teeth over ten years of supportive periodontal therapy (SPT) and to assess the survival rate of splints. MATERIAL AND METHODS Retrospective data of 372 SPT-patients was screened for splints (composite/fiberglass-reinforced composite) in the posterior (molars/premolars) which were inserted at least ten years before due to increased tooth mobility. For each splinted tooth (test), a corresponding control tooth had to be present at the first SPT-session after splint insertion (T1). Data was assessed at T1 and ten years later (T2). Possible influencing covariates for splint survival (mobility degree/Eichner class) were tested by Cox regression. The change in clinical attachment level (ΔCAL), probing pocket depth (ΔPPD) and the testing of possible influencing covariates was analyzed by using mixed linear regression. RESULTS Twenty-four patients (32 splints, 58 splinted teeth) were included. Ten test and two control teeth were lost. No differences were observed between ΔCAL and ΔPPD of test teeth compared to control teeth (ΔCAL -0.38 ± 1.90 vs. 0.20 ± 1.27 mm; ΔPPD -0.17 ± 1.18 vs. 0.10 ± 1.05 mm). Twenty-two splints fractured during the observation period (survival-rate: 31%). Mobility degree and Eichner class did not influence time until fracture. CONCLUSIONS Splinting of periodontally compromised and mobile posterior teeth does not have any disadvantage regarding the clinical periodontal situation when regular SPT is applied. However, splint fractures occur very often. CLINICAL RELEVANCE Splinting of posterior teeth is a treatment option in addition to active periodontal therapy when patients are disturbed by tooth mobility but splints have a high susceptibility to fracture.
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Affiliation(s)
- Sarah K Sonnenschein
- Heidelberg Faculty of Medicine, Department of Conservative Dentistry, Heidelberg University, Clinic for Oral-, Dental- and Maxillofacial Diseases, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
| | - Samuel Kilian
- Heidelberg University, Institute of Medical Biometry, Heidelberg, Germany
| | - Maurice Ruetters
- Heidelberg Faculty of Medicine, Department of Conservative Dentistry, Heidelberg University, Clinic for Oral-, Dental- and Maxillofacial Diseases, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Antonio Ciardo
- Heidelberg Faculty of Medicine, Department of Conservative Dentistry, Heidelberg University, Clinic for Oral-, Dental- and Maxillofacial Diseases, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Ti-Sun Kim
- Heidelberg Faculty of Medicine, Department of Conservative Dentistry, Heidelberg University, Clinic for Oral-, Dental- and Maxillofacial Diseases, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
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Taguchi A, Tanaka S, Ozaki T, Arai K, Mori S, Ohta H, Hagino H, Tanaka S, Shiraki M, Nakamura T, Soen S. Reliability of early stage symptoms/clinical findings of osteonecrosis of the jaw: Japanese Osteoporosis Intervention Trial-05 (JOINT-05). J Bone Miner Metab 2023; 41:854-864. [PMID: 37897672 DOI: 10.1007/s00774-023-01466-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/27/2023] [Indexed: 10/30/2023]
Abstract
INTRODUCTION To investigate the differences in the incidence rates of suspected stage 0/1 osteonecrosis of the jaw (ONJ) and incidence risk of relevant clinical findings of suspected stage 0 ONJ between patients treated with sequential therapy comprising weekly teriparatide for 72 weeks followed by alendronate for 48 weeks vs. those who received monotherapy with alendronate for 120 weeks. MATERIALS AND METHODS Suspected stage 0/1 ONJ was defined by non-specific symptoms. Tooth mobility and periodontal symptoms (gingival bleeding, swelling, and/or pain) were selected as clinical findings of suspected stage 0 ONJ. Poisson regression models were applied to calculate the incidence rate ratios of suspected stage 0/1 between the teriparatide group (TG) and alendronate group (AG). Generalized linear models were used to calculate the risk ratios of clinical findings between groups. RESULTS Two hundred and sixty-one participants in the TG and 344 in the AG answered a structured questionnaire on oral health and were included in this study. There were no significant differences between the groups in the incidence rate of suspected stage 0/1 ONJ at both 72 and 120 weeks. The risk ratio of the TG to AG for tooth mobility was 0.34 (95% confidence interval [CI] 0.13-0.88, p = 0.02) at 72 weeks and 0.90 (95% CI 0.40-2.03, p = 0.83) at 120 weeks. The incidence rate of tooth mobility related to periodontal symptoms decreased in the TG and increased in the AG during the study. CONCLUSION Tooth mobility accompanied by clinical periodontal symptoms may be a useful early sign of stage 0 ONJ.
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Affiliation(s)
- Akira Taguchi
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Matsumoto Dental University, 1780 Hirooka Gobara, Shiojiri, Nagano, 399-0781, Japan.
- Department of Hard Tissue Research, Graduate School of Oral Medicine, Matsumoto Dental University, 1780 Gobara, Hirooka, Shiojiri, Nagano, 399-0781, Japan.
| | - Shiro Tanaka
- Department of Clinical Biostatistics, Graduate School of Medicine, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Tatsuro Ozaki
- Clinical Biostatistics Course, Graduate School of Medicine, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Koshiro Arai
- Clinical Biostatistics Course, Graduate School of Medicine, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Satoshi Mori
- Bone and Joint Surgery, Seirei Hamamatsu General Hospital, Shizuoka, 430-8558, Japan
| | - Hiroaki Ohta
- Kawasaki Medical School General Medical Center, 2-6-1 Nakayama-shita, Kita-ku, Okayama, 700-8505, Japan
| | - Hiroshi Hagino
- Department of Rehabilitation, Sanin Rosai Hospital, 1-8-1 Shinden, Kaike, Tottori, 683-8605, Japan
| | - Sakae Tanaka
- Department of Orthopaedic Surgery, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Masataka Shiraki
- Department of Internal Medicine, Research Institute and Practice for Involutional Diseases, 1610-1 Meisei, Misato, Azumino, Nagano, 399-8101, Japan
| | - Toshitaka Nakamura
- Japan Osteoporosis Foundation, 2-14 Odenmacho, Nihonbashi, Chuo-ku, Tokyo, 103-11, Japan
| | - Satoshi Soen
- Soen Orthopaedics, Osteoporosis and Rheumatology Clinic, 2-14-10 Okamoto, Higashinada-ku, Kobe, Hyogo, 658-0072, Japan
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Roser CJ, Zenthöfer A, Lux CJ, Rues S. A new CAD/CAM tooth mobility simulating model for dental in vitro investigations. Clin Oral Investig 2023; 27:5131-5140. [PMID: 37410153 PMCID: PMC10492759 DOI: 10.1007/s00784-023-05133-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 06/22/2023] [Indexed: 07/07/2023]
Abstract
OBJECTIVES To validate a new tooth mobility simulating in vitro model for biomechanical tests of dental appliances and restorations. MATERIAL AND METHODS Load-deflection curves for teeth in CAD/CAM models (n = 10/group, 6 teeth/model) of the anterior segment of a lower jaw with either low tooth mobility (LM) or high tooth mobility (HM) were recorded with a universal testing device and a Periotest device. All teeth were tested before and after different ageing protocols. Finally, vertical load capacity (Fmax) was tested in all teeth. RESULTS At F = 100 N load, vertical/horizontal tooth deflections before ageing were 80 ± 10 µm/400 ± 40 µm for LM models and 130 ± 20 µm/610 ± 100 µm for HM models. Periotest values were 1.6 ± 1.4 for LM models and 5.5 ± 1.5 for HM models. These values were within the range of physiological tooth mobility. No visible damage occurred during ageing and simulated ageing had no significant effect on tooth mobility. Fmax values were 494 ± 67 N (LM) and 388 ± 95 N (HM). CONCLUSION The model is practical, easy to manufacture and can reliably simulate tooth mobility. The model was also validated for long-term testing, so is suitable for investigating various dental appliances and restorations such as retainers, brackets, dental bridges or trauma splints. CLINICAL RELEVANCE Using this in-vitro model for high standardised investigations of various dental appliances and restorations can protect patients from unnecessary burdens in trials and practice.
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Affiliation(s)
- Christoph J. Roser
- Department of Orthodontics and Dentofacial Orthopedics, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Andreas Zenthöfer
- Department of Prosthodontics, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Christopher J. Lux
- Department of Orthodontics and Dentofacial Orthopedics, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Stefan Rues
- Department of Prosthodontics, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
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Wada J, Wada K, Uctasli S, Wakabayashi N, Iwamoto T, Vallittu PK, Lassila L. Effect of splinting material type and location on resistance against deflection force of splinted periodontally compromised teeth with hypermobility. J Mech Behav Biomed Mater 2023; 142:105873. [PMID: 37119722 DOI: 10.1016/j.jmbbm.2023.105873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/10/2023] [Accepted: 04/24/2023] [Indexed: 05/01/2023]
Abstract
This study aimed to evaluate the effect of splinting material type and material location on the force resistance of splinted periodontally compromised teeth with hypermobility. Extracted teeth including the target tooth (maxillary second premolar) and its adjacent teeth were placed into the alveolar sockets of a dental arch model via artificial periodontal ligaments made of elastic impression material. Three different experimental models with varied target tooth mobility including Periotest® values (PTVs) of 20, 30, and 40 were fabricated (named models #20, #30, and #40, respectively). For each experimental model, the force resistance of tooth splinting was tested using the following four materials: everStick PERIO (glass fiber reinforcement: GFR), FORESTAFLEX (braided stainless steel: BSS), Ortho-FlexTech (stainless steel chain: SSC), and Super-Bond (MMA-based resin cement: MRC). The evaluated measures were the PTV after tooth splinting and the required load to cause tooth displacements of 0.05 mm and 0.10 mm in the vertical and lateral directions, respectively. The splinting material type and material location as well as the original PTV of target the tooth significantly affected all the evaluated measures (p < 0.001). MRC revealed the significantly highest force resistance of tooth splinting regardless of material location in each experimental model and was followed by GFR. The PTVs of splinted teeth were comparable to those of adjacent anchor teeth in models #20 and #30 when using GFR, while that was comparable in model #40 when using MRC. Meanwhile, the load causing certain tooth displacement showed a similar tendency to previous-reported data with healthy teeth in model #20 when using GFR, while that showed a similar tendency in models #30 and #40 when using MRC. Overall results concluded that splinting material type and location play a role in the resistance against the deflection force of splinted periodontally compromised hypermobile tooth. It was noted that MRC provided the highest resistance against the deflection force of splinted teeth regardless of material location whereas GFR maintained the physiologically considered tooth mobility.
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Affiliation(s)
- Junichiro Wada
- Department of Biomaterials Science, Turku Clinical Biomaterials Centre - TCBC, Institute of Dentistry, University of Turku, Itäinen Pitkäkatu 4B, Turku, 20520, Finland; Department of Advanced Prosthodontics, Tokyo Medical and Dental University - TMDU, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
| | - Kanae Wada
- Department of Biomaterials Science, Turku Clinical Biomaterials Centre - TCBC, Institute of Dentistry, University of Turku, Itäinen Pitkäkatu 4B, Turku, 20520, Finland; Department of Pediatric Dentistry/Special Needs Dentistry, Tokyo Medical and Dental University - TMDU, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Sadullah Uctasli
- Department of Prosthodontics, Faculty of Dentistry, University of Ankara, 06790, Ankara, Turkey
| | - Noriyuki Wakabayashi
- Department of Advanced Prosthodontics, Tokyo Medical and Dental University - TMDU, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Tsutomu Iwamoto
- Department of Pediatric Dentistry/Special Needs Dentistry, Tokyo Medical and Dental University - TMDU, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Pekka K Vallittu
- Department of Biomaterials Science, Turku Clinical Biomaterials Centre - TCBC, Institute of Dentistry, University of Turku, Itäinen Pitkäkatu 4B, Turku, 20520, Finland; Wellbeing Services County of South-West Finland, Lemminkäisenkatu 23, 20520, Turku, Finland
| | - Lippo Lassila
- Department of Biomaterials Science, Turku Clinical Biomaterials Centre - TCBC, Institute of Dentistry, University of Turku, Itäinen Pitkäkatu 4B, Turku, 20520, Finland
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Bousiou A, Konstantopoulou K, Polychronopoulou A, Halazonetis DJ, Schimmel M, Kossioni AE. Sociomedical and oral factors affecting masticatory performance in an older population. Clin Oral Investig 2021; 26:3477-3486. [PMID: 34850264 DOI: 10.1007/s00784-021-04316-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 11/22/2021] [Indexed: 12/26/2022]
Abstract
OBJECTIVES To assess the sociomedical and oral factors affecting masticatory performance in a community-dwelling older population. MATERIALS AND METHODS Community-dwelling persons over 60 years were investigated using medical and dental oral interviews, oral and denture examination (natural teeth, tooth mobility, number of occluding tooth pairs, and removable dentures' prevalence and quality), and evaluation of masticatory performance using a mixing ability test. RESULTS A total of 130 participants with a mean age of 73.9±8.5 years were recorded. Fifty-eight (44.6%) used various types of removable prostheses. Twenty were edentulous and used a pair of complete dentures. Univariate analyses revealed statistically significant associations (p≤0.05) between masticatory performance and aging, marital status, subjective chewing ability, use of removable dentures, use of various combinations of complete dentures, pain caused by maxillary denture, number of teeth, tooth mobility, posterior chewing pairs, all chewing contacts natural or prosthetic, retention of mandibular partial dentures, and dentures' occlusion. The multivariable quantile regression analysis revealed that fewer natural teeth (95% CI: -0.02-0.01, p<0.001), being edentulous and using a pair of complete dentures (95% CI: 0.09-0.35, p=0.001), and larger percentage of severely mobile teeth (95% CI: 0.07-0.82, p=0.020) were associated with lower masticatory performance. CONCLUSIONS Poor masticatory performance in older adults was associated with fewer teeth, being edentulous and using a pair of complete dentures, and increased prevalence of severe tooth mobility. CLINICAL RELEVANCE Retaining the natural dentition and preventing and treating periodontal disease are important measures to maintain masticatory performance in older adults.
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Affiliation(s)
- Andrianna Bousiou
- Department of Prosthodontics, School of Dentistry, National and Kapodistrian University of Athens, Thivon 2, 11527, Athens, Greece
| | - Kalliopi Konstantopoulou
- Department of Prosthodontics, School of Dentistry, National and Kapodistrian University of Athens, Thivon 2, 11527, Athens, Greece
| | - Argy Polychronopoulou
- Department of Preventive and Community Dentistry, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Demetrios J Halazonetis
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Martin Schimmel
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.,Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Anastassia E Kossioni
- Department of Prosthodontics, School of Dentistry, National and Kapodistrian University of Athens, Thivon 2, 11527, Athens, Greece.
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Uchida H, Wada J, Watanabe C, Nagayama T, Mizutani K, Mikami R, Inukai S, Wakabayashi N. Effect of night dentures on tooth mobility in denture wearers with sleep bruxism: a pilot randomized controlled trial. J Prosthodont Res 2021; 66:564-571. [PMID: 34789636 DOI: 10.2186/jpr.jpr_d_21_00230] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE The purpose of this study was to investigate the inhibitory effect of night denture (ND) placement on abutment tooth mobility in removable partial denture (RPD) wearers with sleep bruxism (SB). METHODS The participants were selected from RPD wearers diagnosed with SB using BiteStrip® and randomly allocated to one of the following groups: with ND placement or without ND placement (intervention or control group, respectively). The mobility of the RPD abutment tooth was measured using Periotest® at baseline (T0) and at 1 (T1), 3 (T3), and 6 months (T6). BiteStrip® scores were recorded at T0 and T6. Intragroup comparisons of the Periotest® value (PTV) were performed using analysis of covariance. Intergroup comparisons of PTV and BiteStrip® scores were performed using the linear mixed model and Wilcoxon signed-rank test, respectively. Intragroup comparisons of BiteStrip® scores were performed using the Mann-Whitney U test. RESULTS At T6, the PTV in the intervention group was significantly lower than that in the control group (p=0.004). PTV was significantly lower at T6 than that at T0 in the intervention group (p=0.030), while PTV was significantly higher at T6 than that at T0 in the control group (p=0.007). There was no significant difference in the BiteStrip® score between the two groups. The BiteStrip® score at T6 was significantly lower than that at T0 only in the intervention group (p=0.011). CONCLUSION ND placement might inhibit the increase in mobility of RPD abutment teeth and be effective in protecting them in RPD wearers with SB.
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Affiliation(s)
- Hirofumi Uchida
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Junichiro Wada
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Chie Watanabe
- Department of Conservative Dentistry, Division of Biomaterials and Engineering, Showa University School of Dentistry, Tokyo, Japan
| | - Tomiharu Nagayama
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Koji Mizutani
- Department of Periodontology, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Risako Mikami
- Department of Periodontology, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shusuke Inukai
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Noriyuki Wakabayashi
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Sonnenschein SK, Ciardo A, Kilian S, Ziegler P, Ruetters M, Splindler M, Kim TS. The impact of splinting timepoint of mobile mandibular incisors on the outcome of periodontal treatment-preliminary observations from a randomized clinical trial. Clin Oral Investig 2021; 26:921-930. [PMID: 34309736 PMCID: PMC8311063 DOI: 10.1007/s00784-021-04075-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/08/2021] [Indexed: 11/27/2022]
Abstract
Objectives To compare the outcome of periodontal parameters in mobile mandibular incisors which were splinted before or after full-mouth disinfection (FMD). Materials and methods Thirty-four periodontitis patients with ≥ 1 mobile mandibular incisor (mobility degree II/III, clinical attachment loss (CAL) ≥ 5 mm, relative bone loss ≥ 50%) were randomly allocated to group A or B. Patients received periodontal treatment (PT) including splinting of teeth 33–43 before (A) or after FMD (B). Patient (age/sex/smoking status/systemic diseases/number of teeth) and tooth-related parameters (mean probing pocket depth (PPD)/CAL/oral hygiene indices; for the overall dentition and region 33–43) were assessed prior to PT and 12 months after FMD by a blinded examiner. Therapy-related information was added (group/antibiotic therapy/surgical intervention). Results Twenty-six patients (A: 12; B:14) were re-examined. Two patients of group B did not need splinting after FMD because of reduction in mobility after FMD. Regression analysis revealed a positive association of antibiotic therapy with CAL_overall, PPD_overall, and PPD_33-43 (p ≤ 0.01). There is a trend toward a higher reduction of periodontal parameters at teeth 33–43 in group A (PPD_33-43: − 0.91 vs. − 0.27 mm; CAL_33-43: − 1.02 vs. − 0.47 mm). Conclusions Teeth splinted before or after FMD show a significant improvement in periodontal parameters 12 months after FMD. Splinting after FMD offered the option to detect reduction in mobility. Clinical relevance Despite a higher, but not statistically significant, improvement in periodontal parameters on teeth splinted before FMD, the results do not indicate which timepoint of splinting is more beneficial. The decision for the therapeutic procedure should therefore be made individually.
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Affiliation(s)
- Sarah K Sonnenschein
- Section of Periodontology, Department of Conservative Dentistry, Clinic for Oral-, Dental- and Maxillofacial Diseases, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
| | - Antonio Ciardo
- Section of Periodontology, Department of Conservative Dentistry, Clinic for Oral-, Dental- and Maxillofacial Diseases, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Samuel Kilian
- Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Philipp Ziegler
- Section of Periodontology, Department of Conservative Dentistry, Clinic for Oral-, Dental- and Maxillofacial Diseases, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Maurice Ruetters
- Section of Periodontology, Department of Conservative Dentistry, Clinic for Oral-, Dental- and Maxillofacial Diseases, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Marcia Splindler
- Section of Periodontology, Department of Conservative Dentistry, Clinic for Oral-, Dental- and Maxillofacial Diseases, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Ti-Sun Kim
- Section of Periodontology, Department of Conservative Dentistry, Clinic for Oral-, Dental- and Maxillofacial Diseases, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
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Li LL, Chen H, Li WW, Wang Y, Zhou YS, Wang YB, Sun YC. [Investigation of posterior teeth displacement under normal bite force by an intraoral scanner]. Zhonghua Kou Qiang Yi Xue Za Zhi 2020; 55:743-749. [PMID: 33045785 DOI: 10.3760/cma.j.cn112144-20200513-00264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To quantitatively evaluate the change of the long axis angle and the relative displacement of the crown feature points of the posterior teeth under normal bite force utilizing an intraoral scanner, and to provide clinical reference. Methods: From May to December 2019, fifteen graduate volunteers (5 males and 10 females, aged from 22 to 30, with an average age of 25.7 years) from Peking University School and Hospital of Stomatology were recruited to participate in the study. The surface data (U1, L1) of the maxillary and mandibular posterior teeth were scanned by an intraoral scanner i500, and saved as original data. The volunteers were guided to bite in the intercuspal position with normal bite force. The buccal bite data of the posterior teeth were scanned as the basis for registration. The digital casts were imported into Geomagic studio 2013 software and the boundary lines along the gingival margin and mesial and distal contact area of posterior teeth of data (U1, L1) were determined. Long axis of the crown, crown centroid and mesial functional cusp vertex were establishd. The data (U1, L1) were segmented into single tooth. Single tooth was aligned to buccal bite data separately using best-fit alignment command based on the buccal common area of the crown and new casts data (U2, L2) were obtained as the data under bite force. The long axis angle and centroid distance between adjacent teeth (second premolar and first molar, second molar and first molar) were measured and the deviation between data obtained at mouth-open state and that at biting state was calculated. Negative value meant centroid distance became shorter under bite force. The first molar was set as the common area and registrate the U1, L1 to U2, L2. The angle of long axes, and displacement of centroid and of functional cusp vertex between second premolar of two casts were calculated, as well as between second molar of two casts. Wilcoxon signed rank test was used to analyze the differences of teeth displacement between second premolar and second molar, and between maxillary and mandibular jaws with SPSS 26.0 statistical software. Results: The result of second premolar and second molar in the same jaw had no statistical difference (P>0.05). The centroid distance deviation of mandibular second premolar-first molar [-0.022(0.046) mm] was larger than that of maxilla [-0.006 (0.040) mm] (P<0.05). The long axis angle of second premolar itself [0.913°(0.647°)] and centroid distance of second molar itself [0.102 (0.106) mm] on the mandibular jaw were different from that on the maxillary jaw, which were 0.590°(0.550°) and 0.074(0.060) mm respectively (P<0.05). Conclusions: Under bite force, displacement of the second premolar and second molar was present, including the displacement of centroids and deflection of long axes. The mandibular posterior teeth have larger displacement than the maxillary teeth.
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Affiliation(s)
- L L Li
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - H Chen
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - W W Li
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Wang
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y S Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y B Wang
- Shandong Xinhua Medical Technology Co. LTD, Zibo 255086, China
| | - Y C Sun
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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9
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Abstract
Mobility is a fundamental characteristic of mammalian teeth, and has been widely used to determine individual tooth prognosis. However, the direction and extent of tooth movement under functional loads are unknown. This study investigated maxillary molar mobility, alveolar bending, and periodontal space (PDL) fluid pressure during mastication and masseter muscle contraction in young pigs, along with PDL space measurements. Twelve three-month-old farm pigs were instrumented with some or all of the following: (1) ultrasonic crystals, one implanted into the pulp chamber of a deciduous maxillary molar and additional crystals glued onto its buccal and palatal alveolar plates; (2) rosette strain gauges affixed to the buccal and palatal of alveolar ridges; (3) a pressure transducer inserted into palatal alveolar bone facing the PDL. Tooth mobility, alveolar bending, and fluid pressure were simultaneously recorded during unrestrained feeding and subsequent masseter muscle stimulation. The PDL widths were measured using micro-CT. The results indicate that during the power stroke of mastication, (1) the molar displaced buccally and apically (192 ± 95 µm) regardless of the side of chewing; (2) compressive bone strain was greater on the buccal than on the palatal alveolar plate; and (3) PDL pressure increased during the power strok (3.63 ± 0.80 kPa). Masseter contraction produced similar results but with generally lower values. The PDL widths were larger than the range of tooth mobility, and showed no correlation with the mobility. Thus occlusal function causes buccal tipping and intrusion of maxillary molars with concomitant compression of the buccal alveolar plate and raised pressure within the PDL space.
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Affiliation(s)
- Atriya Salamati
- Depts. Orthodontics & Oral Health Sciences, University of Washington, School of Dentistry, Seattle, WA, USA; Dept. Pediatric Dentistry, Jacobi Medical Center, Bronx, NY, USA
| | - Jie Chen
- Depts. Orthodontics & Oral Health Sciences, University of Washington, School of Dentistry, Seattle, WA, USA; Dept. Stomatology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong, University School of Medicine, Shanghai, China
| | - Susan W Herring
- Depts. Orthodontics & Oral Health Sciences, University of Washington, School of Dentistry, Seattle, WA, USA
| | - Zi-Jun Liu
- Depts. Orthodontics & Oral Health Sciences, University of Washington, School of Dentistry, Seattle, WA, USA.
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10
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Nagayama T, Wada J, Watanabe C, Murakami N, Takakusaki K, Uchida H, Utsumi M, Wakabayashi N. Influence of retainer and major connector designs of removable partial dentures on the stabilization of mobile teeth: A preliminary study. Dent Mater J 2020; 39:89-100. [PMID: 31582595 DOI: 10.4012/dmj.2018-272] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The purpose of this study was to investigate the influence of retainers and major connector designs on the stabilization of remaining mobile teeth using removable partial dentures (RPDs). We prepared experimental RPDs with several retainer designs and major connectors for lower Kennedy class I models. The simulated RPD insertion and removal test was conducted and retentive force and mobility of mobile remaining teeth with and without RPD placement were measured throughout a simulation test. Regardless of reduction of retentive force, the placement of RPDs using cast clasps and/or lingual plates resulted in reduced mobility of the remaining teeth than use of wrought wire clasps and/or lingual bars. The results suggested that cast clasps and lingual plates are effective for the stabilization of mobile, remaining teeth. Additionally, the stabilizing effect of RPD on abutment teeth was not diminished, despite decreases in retentive force.
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Affiliation(s)
- Tomiharu Nagayama
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU)
| | - Junichiro Wada
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU)
| | - Chie Watanabe
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU)
| | - Natsuko Murakami
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU)
| | - Kensuke Takakusaki
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU)
| | - Hirofumi Uchida
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU)
| | - Miona Utsumi
- School of Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University (TMDU)
| | - Noriyuki Wakabayashi
- Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University (TMDU)
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11
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Wu CP, Tu YK, Lu SL, Chang JH, Lu HK. Quantitative analysis of Miller mobility index for the diagnosis of moderate to severe periodontitis - A cross-sectional study. J Dent Sci 2019; 13:43-47. [PMID: 30895093 PMCID: PMC6388838 DOI: 10.1016/j.jds.2017.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 11/16/2017] [Indexed: 11/17/2022] Open
Abstract
Background/purpose We assessed the mobility of single-root teeth by using Miller's mobility index (MMI) and to analyze the validity of MMI for the diagnosis of periodontitis. Materials and methods A total of 30 patients were included and the Spearman correlation coefficient was used to assess the correlation between MMI, clinical attachment level (CAL), and probing depth (PD). The validity of MMI for the diagnosis of the severity of periodontitis was evaluated using the receiver operating characteristic (ROC) curve, area under curve (AUC) value, positive predictive value (PPV). Results Strong correlations were observed between MMI and CAL (r = 0.92) and between MMI and PD (r = 0.76). When the CAL = 3–4 mm and CAL ≥5 mm groups were pooled together, the AUC value was 0.81. The AUC was 0.86 for diagnosis with MMI in the CAL ≥5 mm group. A PPV of 100% was achieved for all grades when MMI >1. When the teeth with PD ≥ 5 to <7 mm and PD ≥ 7 mm groups were pooled together, the AUC value for MMI was 0.80. The PPV was 98.8%, 99%, and 100% for MMI Grade 1, Grade 2, and Grade 3, respectively. When PD ≥ 7 mm was defined as severe periodontitis, the AUC value for MMI was 0.72. Conclusion MMI may provide valuable information for the diagnosis of moderate and severe periodontitis when CAL is not obtainable during routine practice.
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Affiliation(s)
- Chung-Ping Wu
- Periodontal Department, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Kang Tu
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Sao-Lun Lu
- Periodontal Department, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jui-Hung Chang
- Periodontal Department, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hsein-Kun Lu
- Periodontal Department, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
- Clinical Periodontics of Dental Department, Taipei Medical University Hospital, Taipei, Taiwan
- Corresponding author. Periodontal Department, College of Oral Medicine, Taipei Medical University, 250 Wu Xing Street, Taipei, Taiwan. Fax: +886 2 27362295.
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12
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YOON S, ODLUM M, Lee Y, CHOI T, KRONISH IM, DAVIDSON KW, FINKELSTEIN J. Applying Deep Learning to Understand Predictors of Tooth Mobility Among Urban Latinos. Stud Health Technol Inform 2018; 251:241-244. [PMID: 29968648 PMCID: PMC6169516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We applied deep learning algorithms to build correlate models that predict tooth mobility in a convenience sample of urban Latinos. Our application of deep learning identified age, general health, soda consumption, flossing, financial stress, and years living in the US as the strongest correlates of self-reported tooth mobility among 78 variables entered. The application of deep learning was useful for gaining insights into the most important modifiable and non-modifiable factors predicting tooth mobility, and maybe useful for guiding targeted interventions in urban Latinos.
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Affiliation(s)
- Sunmoo YOON
- Department of Medicine, College of Physicians and Surgeons,
Columbia University, New York, NY, USA
| | - Michelle ODLUM
- School of Nursing, Columbia University, New York, NY,
USA
| | | | - Thomas CHOI
- College of Dental Medicine, Columbia University, New York,
NY, USA
| | - Ian M. KRONISH
- Department of Medicine, College of Physicians and Surgeons,
Columbia University, New York, NY, USA
| | - Karina W. DAVIDSON
- Department of Medicine, College of Physicians and Surgeons,
Columbia University, New York, NY, USA
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13
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Hassel AJ, Safaltin V, Grill S, Schröder J, Wahl HW, Klotz AL, Habibi E, Rammelsberg P, Zenthöfer A. Risk factors for tooth loss in middle and older age after up to 10 years: An observational cohort study. Arch Oral Biol 2017; 86:7-12. [PMID: 29132069 DOI: 10.1016/j.archoralbio.2017.11.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 10/31/2017] [Accepted: 11/04/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The objective of this research was to identify risk factors for tooth loss in two birth cohorts, quinquagenarians and septuagenarians, after up to 10 years of clinical observation. DESIGN One hundred and twenty-three participants were recruited from the Interdisciplinary Study of Adult Development (ILSE) and examined at baseline and up to 10 years after. Thirty-nine and 84 participants belonged to the older (OC; born in 1930/32) cohort and younger (YC; born in 1950/52) cohort, respectively. Each participant underwent a dental examination comprising evaluation of the dental status (number of teeth, prosthetic restorations), Plaque Index (PI), Gingival Index (GI), DMF-S, periodontal probing depths (PD) and tooth mobility (TM). Incidence of tooth loss over the study period was calculated for both cohorts as well as for the grouped dental target variables. A logistic regression model for tooth loss (0=tooth present/1=tooth lost) was compiled with possible binary confounders. RESULTS During the study period (eight years in mean), 1.2 (1.9) and 2.6 (2.6) teeth were lost in YC and OC, respectively, reflecting correspondent loss rates of 5% and 14% (p<0.001). However, primarily TM >1 merged into substantial tooth loss (60% lost). The regression analysis confirmed the bivariate findings. Older age and worse oral health issues were identified as risk factors for tooth loss(p<0.05). CONCLUSIONS Both quinquagenarians and septuagenarians show relevant tooth loss over a period of up to 10 years but more in septuagenarians. The predominant predictor for tooth loss seems to be greater tooth mobility. With the rising challenges due to aging in several societies, knowing the risks might help clinicians when weighing treatment strategies and should encourage refining preventive measures for older patients.
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Affiliation(s)
| | - Volkan Safaltin
- Dental School, Department of Prosthetic Dentistry, University of Heidelberg, Germany
| | - Sabine Grill
- Dental School, Department of Prosthetic Dentistry, University of Heidelberg, Germany
| | - Johannes Schröder
- Section of Gerontopsychiatric Research, University of Heidelberg, Germany; Institute of Gerontology, University of Heidelberg, Germany
| | | | - Anna-Luisa Klotz
- Dental School, Department of Prosthetic Dentistry, University of Heidelberg, Germany.
| | - Edriss Habibi
- Dental School, Department of Prosthetic Dentistry, University of Heidelberg, Germany
| | - Peter Rammelsberg
- Dental School, Department of Prosthetic Dentistry, University of Heidelberg, Germany
| | - Andreas Zenthöfer
- Dental School, Department of Prosthetic Dentistry, University of Heidelberg, Germany
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14
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Hartmann M, Dirk C, Reimann S, Keilig L, Konermann A, Jäger A, Bourauel C. Influence of tooth dimension on the initial mobility based on plaster casts and X-ray images : A numerical study. J Orofac Orthop 2017; 78:285-292. [PMID: 28091721 DOI: 10.1007/s00056-016-0082-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 12/05/2016] [Indexed: 12/18/2022]
Abstract
AIMS The goal was to determine the influence of different geometric parameters of the tooth on the initial tooth mobility and the position of the center of resistance employing numerical models based on scaled X-ray images and plaster casts. METHODS The dimensions of tooth 21 were measured in 21 patients, using radiographs and dental casts. Length and mesiodistal width of the tooth were obtained from the X-ray image and the orovestibular diameter from the plaster cast. Finite element models were generated. Cortical and cancellous bone and the periodontal ligament were simulated to create realistic models. Root length (11-17 mm), mesiodistal width (6-10 mm) and orovestibular thickness (7-9 mm) were varied in 1-mm steps to generate 105 models. In the simulation, each model was loaded with a force of 10 N in vestibulopalatinal direction and with a torque of 10 Nmm to determine tooth displacements and center of resistance. RESULTS Initial tooth displacement and thus mobility increased with decreasing total root surface. The shortest, slimmest and thinnest tooth showed a total deflection of 0.14 mm at the incisal edge, while the longest, widest and thickest tooth showed a total deflection of 0.10 mm. Changes in mesiodistal width had the greatest influence on initial tooth mobility and changes in orovestibular thickness the least. The teeth's center of resistance was positioned between 37 and 43% of the root length measured from the cervical margin of the alveolar bone. The center of resistance of the longest dental root investigated was located around 6% more cervically compared to the one of the shortest dental root. The influence of root width and thickness on the position of the center of resistance was significantly lower than root length. CONCLUSION Geometric parameters significantly impact initial tooth mobility and position of the center of resistance. Thus, tooth dimensions should be considered in orthodontic treatment planning. Dental radiographs represent a sufficient validation tool to estimate the quality of a pure dental tipping during orthodontic treatment, as the orovestibular thickness has little influence. However, for three-dimensional tooth displacements all geometric parameters should be determined accurately using plaster casts or DVT.
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Affiliation(s)
- Martin Hartmann
- Endowed Chair of Oral Technology, School of Dentistry, University of Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany
| | - Cornelius Dirk
- Endowed Chair of Oral Technology, School of Dentistry, University of Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany
| | - Susanne Reimann
- Endowed Chair of Oral Technology, School of Dentistry, University of Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany.,Department of Orthodontics, School of Dentistry, University of Bonn, Bonn, Germany
| | - Ludger Keilig
- Endowed Chair of Oral Technology, School of Dentistry, University of Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany.,Department of Prosthetic Dentistry, Preclinical Education and Materials Science, School of Dentistry, University of Bonn, Bonn, Germany
| | - Anna Konermann
- Department of Orthodontics, School of Dentistry, University of Bonn, Bonn, Germany
| | - Andreas Jäger
- Department of Orthodontics, School of Dentistry, University of Bonn, Bonn, Germany
| | - Christoph Bourauel
- Endowed Chair of Oral Technology, School of Dentistry, University of Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany.
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15
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Lee JH, Kweon HHI, Choi SH, Kim YT. Association between dental implants in the posterior region and traumatic occlusion in the adjacent premolars: a long-term follow-up clinical and radiographic analysis. J Periodontal Implant Sci 2016; 46:396-404. [PMID: 28050317 PMCID: PMC5200865 DOI: 10.5051/jpis.2016.46.6.396] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 11/02/2016] [Indexed: 11/26/2022] Open
Abstract
Purpose The aim of this retrospective study was to determine the association between dental implants in the posterior region and traumatic occlusion in the adjacent premolars, using data collected during from 2002 to 2015. Methods Traumatic occlusion in the adjacent premolars was assessed by examining clinical parameters (bleeding on probing, probing pocket depth, fremitus, and tooth mobility) and radiographic parameters (loss of supporting bone and widening of the periodontal ligament space) over a mean follow-up of 5 years. Clinical factors (gender, age, implant type, maxillary or mandibular position, opposing teeth, and duration of functional loading) were evaluated statistically in order to characterize the relationship between implants in the posterior region and traumatic occlusion in the adjacent premolars. Results The study inclusion criteria were met by 283 patients, who had received 347 implants in the posterior region. The incidence of traumatic occlusion in the adjacent premolars was significantly higher for splinted implants (P=0.004), implants in the maxillary region (P<0.001), and when implants were present in the opposing teeth (P<0.001). The other clinical factors of gender, age, and duration of functional loading were not significantly associated with traumatic occlusion. Conclusions This study found that the risk of traumatic occlusion in the adjacent premolars increased when splinted implants were placed in the maxillary molar region and when the teeth opposing an implant also contained implants.
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Affiliation(s)
- Jae-Hong Lee
- Department of Periodontology, Wonkwang University Daejeon Dental Hospital, Wonkwang University College of Dentistry, Daejeon, Korea
| | - Helen Hye-In Kweon
- Department of Periodontology, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Seong-Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Young-Taek Kim
- Department of Periodontology, National Health Insurance Service Ilsan Hospital, Goyang, Korea
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16
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Abstract
The impact of tooth mobility and occlusal trauma (OT) on periodontal bone loss and need for therapy has been debated for many years. This paper summarizes the relevant literature reported in three Dental Clinics of North America articles in the late 1990s, and adds newer information from the 2000s. Principle findings indicate that strong evidence of mobility and OT impacting tooth longevity is lacking, but reducing inflammation in the surrounding periodontium remains a critical treatment. Occlusal therapy when mobility is increasing, comfort or function are compromised, or periodontal regeneration procedures are planned should be considered.
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Affiliation(s)
- Richard A Reinhardt
- Department of Surgical Specialties, University of Nebraska Medical Center College of Dentistry, 4000 East Campus Loop South, Lincoln, NE 68583-0740, USA.
| | - Amy C Killeen
- Department of Surgical Specialties, University of Nebraska Medical Center College of Dentistry, 4000 East Campus Loop South, Lincoln, NE 68583-0740, USA
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17
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Al-Qutub MN. Orthodontic elastic band-induced periodontitis - A case report. Saudi Dent J 2011; 24:49-53. [PMID: 23960528 DOI: 10.1016/j.sdentj.2011.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2011] [Revised: 03/07/2011] [Accepted: 03/13/2011] [Indexed: 10/18/2022] Open
Abstract
Periodontal problems due to the use of elastic bands have been documented in the past. A 9-year-old girl reported to a periodontist with complaints of bleeding from gums and tooth mobility of upper right central incisor. This case, reports the early diagnosis and treatment of an acute localized periodontitis arising from the incorrect use of orthodontic elastic rubber bands to close a maxillary midline diastema. The elastic band induced periodontitis was treated with a combination of surgery, splinting, antibiotics and orthodontics. Removal of the etiologic agent improved the condition of the tooth.
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Affiliation(s)
- Montaser N Al-Qutub
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
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18
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Kundapur PP, Bhat KM, Bhat GS. Association of trauma from occlusion with localized gingival recession in mandibular anterior teeth. Dent Res J (Isfahan) 2009; 6:71-4. [PMID: 21528034 PMCID: PMC3075458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND There have been passing references in history that excessive occlusal forces might be a causative factor in gingival recession. The purpose of the present cross-sectional study was to explore the role of trauma from occlusion on the development of gingival recession. METHODS Three hundred patients reporting to the department of Periodontics were screened for the presence of gingival recession in the lower incisors. A single trained examiner carried out clinical examination for signs of trauma from occlusion, such as fremitus test, presence of wear facets and mobility. The data were analyzed by chi square test. RESULTS No statistically significant relationship was observed between the presence of a positive fremitus and wear facets with gingival recession. However, a significant association was observed between patients who experienced mobility and gingival recession. CONCLUSION There does appear to be a relationship between fremitus and tooth wear with gingival recession based on the results of the present study, though not conclusive. However, the sign of tooth mobility, which is a feature of trauma from occlusion, appeared to be a predictor of positive association with gingival recession.
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Affiliation(s)
- Pratibha Panduranga Kundapur
- MDS, Associate Professor, Department of Periodontics, Manipal College of Dental Sciences, Manipal, India,Correspondence to: Pratibha Panduranga Kundapur MDS, Associate Professor, Department of Periodontics, Manipal College of Dental Sciences, Manipal, India E-mail:
| | - Khandige Mahalinga Bhat
- MDS, Professor, Department of Periodontics, Manipal College of Dental Sciences, Manipal, India
| | - Giliyar Subraya Bhat
- MDS, MFGDP, Professor and Head, Department of Periodontics, Manipal College of Dental Sciences, Manipal, India
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