76
|
Sugimura Y, Miyamoto S, Kashiwagura T, Kobayashi M, Miyakoshi N, Shimada Y. SAT0182 Correlation between Positive Blood Flow Signal on Joint Ultrasonography and Progression of Joint Destruction in Patients with Rheumatoid Arthritis Treated with Tocilizumab for 4 Years. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
77
|
Sugimura Y, Miyamoto S, Kashiwagura T, Kobayashi M, Miyakoshi N, Shimada Y. AB0257 Clinical Outcome of 2 Years Treatment of The Early Phase Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
78
|
Kashiwagura T, Kimura Y, Wakabayashi I, Yuasa Y, Miyamoto S, Kobayashi M, Sugimura Y, Miyakoshi N, Shimada Y. AB0979 A Comparison of Physical and Joint Ultrasonography Findings of The MTP Joint in Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
79
|
Kinoshita H, Miyakoshi N, Miyamoto S, Abe S, Sugimura Y, Shimada Y. AB0349 Denosumab versus Bisphosphonates for Treatment of Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
80
|
Kobayashi M, Miyamoto S, Kashiwagura T, Sugimura Y, Konishi N, Urayama M, Ito H, Sakuraba T, Aizawa T, Abe H, Kamo K, Aonuma H, Miyakoshi N, Shimada Y. AB1032 Profiles of Patients Aged over 80 Years with Rheumatoid Arthritis in Aora Registry. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.1567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
81
|
Tabernero J, Mayer Robert J, Ohtsu A, Yoshino T, Garcia-Carbonero R, Pastorino A, Peeters M, Winkler R, Makris L, Wahba M, Zaniboni A, Shimada Y, Yamazaki K, Komatsu Y, Hochster H, Lenz HJ, Falcone A, Tran B, Van Cutsem E. PD-025 RECOURSE trial: impact of adverse events on quality of life and duration of TAS-102 (trifluridine and tipiracil) treatment. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw200.25] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
82
|
Al-Batran SE, Van Cutsem E, Oh SC, Bodoky G, Shimada Y, Hironaka S, Sugimoto N, Lipatov ON, Kim TY, Cunningham D, Rougier P, Muro K, Liepa AM, Chandrawansa K, Emig M, Ohtsu A, Wilke H. Quality-of-life and performance status results from the phase III RAINBOW study of ramucirumab plus paclitaxel versus placebo plus paclitaxel in patients with previously treated gastric or gastroesophageal junction adenocarcinoma. Ann Oncol 2016; 27:673-9. [PMID: 26747859 PMCID: PMC4803452 DOI: 10.1093/annonc/mdv625] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 11/17/2015] [Accepted: 12/18/2015] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The phase III RAINBOW trial demonstrated that the addition of ramucirumab to paclitaxel improved overall survival, progression-free survival, and tumor response rate in fluoropyrimidine-platinum previously treated patients with advanced gastric/gastroesophageal junction (GEJ) adenocarcinoma. Here, we present results from quality-of-life (QoL) and performance status (PS) analyses. PATIENTS AND METHODS Patients with Eastern Cooperative Oncology Group PS of 0/1 were randomized to receive ramucirumab (8 mg/kg i.v.) or placebo on days 1 and 15 of a 4-week cycle, with both arms receiving paclitaxel (80 mg/m(2)) on days 1, 8, and 15. Patient-reported outcomes were assessed with the QoL/health status questionnaires EORTC QLQ-C30 and EQ-5D at baseline and 6-week intervals. PS was assessed at baseline and day 1 of every cycle. Time to deterioration (TtD) in each QLQ-C30 scale was defined as randomization to first worsening of ≥10 points (on 100-point scale) and TtD in PS was defined as first worsening to ≥2. Hazard ratios (HRs) for treatment effect were estimated using stratified Cox proportional hazards models. RESULTS Of the 665 patients randomized, 650 (98%) provided baseline QLQ-C30 and EQ-5D data, and 560 (84%) also provided data from ≥1 postbaseline time point. Baseline scores for both instruments were similar between arms. Of the 15 QLQ-C30 scales, 14 had HR < 1, indicating similar or longer TtD in QoL for ramucirumab + paclitaxel. Treatment with ramucirumab + paclitaxel was also associated with a delay in TtD in PS to ≥2 (HR = 0.798, P = 0.0941). Alternate definitions of PS deterioration yielded similar results: PS ≥ 3 (HR = 0.656, P = 0.0508), deterioration by ≥1 PS level (HR = 0.802, P = 0.0444), and deterioration by ≥2 PS levels (HR = 0.608, P = 0.0063). EQ-5D scores were comparable between treatment arms, stable during treatment, and worsened at discontinuation. CONCLUSION In patients with previously treated advanced gastric/GEJ adenocarcinoma, addition of ramucirumab to paclitaxel prolonged overall survival while maintaining patient QoL with delayed symptom worsening and functional status deterioration. CLINICALTRIALSGOV NCT01170663.
Collapse
|
83
|
Shimada Y, Sato T, Yajima T, Fujita M, Hashimoto N, Shoji N, Sasano T, Ichikawa H. SCN2B in the Rat Trigeminal Ganglion and Trigeminal Sensory Nuclei. Cell Mol Neurobiol 2016; 36:1399-1408. [DOI: 10.1007/s10571-016-0340-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 01/28/2016] [Indexed: 12/21/2022]
|
84
|
Nakada Y, Fujiwara M, Yakami M, Yokoyama T, Shirayama A, Yamamoto H, Nabatame K, Obara S, Akahane K, Blyth BJ, Miyazaki O, Date H, Yagi K, Hoshioka A, Shimada Y. Optimised paediatric CT dose at a tertiary children's hospital in Japan: a 4-y single-centre analysis. RADIATION PROTECTION DOSIMETRY 2016; 168:61-71. [PMID: 25669653 DOI: 10.1093/rpd/ncv004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 01/09/2015] [Indexed: 06/04/2023]
Abstract
Since diagnostic reference levels (DRLs) for children are not currently established in Japan, the authors determined local DRLs for the full range of paediatric CT examinations in a single tertiary care children's hospital. A retrospective review of 4801 CT performance records for paediatric patients (<15 y old) who had undergone CT examinations from 2008 to 2011 was conducted. The most frequent examinations were of the head (52 %), followed by cardiac (15 %), temporal bone (9 %), abdomen (7 %), chest (6 %) and others (11 %). Approximately one-third of children received two or more CT scans. The authors' investigation showed that mean CTDIvol and DLP for head, chest and abdomen increased as a function of age. Benchmarking of the results showed that CTDIvol, DLP and effective dose for chest and abdomen examinations in this hospital were below average, whereas those for the head tended to be at or slightly above average of established DRL values from five countries. The results suggest that CT examinations as performed in a tertiary children's hospital in Japan are well optimised.
Collapse
|
85
|
Yao J, Singh S, Wolin E, Voi M, Pacaud L, Lincy J, Sachs C, Valle J, Van Cutsem E, Shimada Y, Oh DY. 134O RADIANT-4: Efficacy and safety of everolimus in advanced, nonfunctional neuroendocrine tumors (NET) of the lung or gastrointestinal (GI) tract. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv522.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
86
|
Shimada Y, Hata S, Matsumoto A, Kumakura H, Yamamoto A, Nakashima H, Konno TJ. B23-O-18Effectiveness of multi-scale observations for polycrystalline superconducting materials. Microscopy (Oxf) 2015. [DOI: 10.1093/jmicro/dfv177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
87
|
Miyakoshi N, Hongo M, Kobayashi T, Abe T, Abe E, Shimada Y. Improvement of spinal alignment and quality of life after corrective surgery for spinal kyphosis in patients with osteoporosis: a comparative study with non-operated patients. Osteoporos Int 2015; 26:2657-64. [PMID: 25963236 DOI: 10.1007/s00198-015-3163-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 05/01/2015] [Indexed: 11/26/2022]
Abstract
UNLABELLED This study evaluated changes in spinal alignment and quality of life (QOL) after corrective spinal surgery for patients with postmenopausal osteoporosis and spinal kyphosis. Spinal global alignment and QOL were significantly improved after corrective spinal surgery but did not reach the level of non-operated controls. INTRODUCTION With the increased aging of society, the demand for corrective spinal instrumentation for spinal kyphosis in osteoporotic patients is increasing. However, previous studies have not focused on the improvement of quality of life (QOL) after corrective spinal surgery in patients with osteoporosis, compared to non-operated control patients. The purposes of this study were thus to evaluate changes in spinal alignment and QOL after corrective spinal instrumentation for patients with osteoporosis and spinal kyphosis and to compare these results with non-operated patients. METHODS Participants comprised 39 patients with postmenopausal osteoporosis ≥50 years old who underwent corrective spinal surgery using multilevel posterior lumbar interbody fusion (PLIF) for symptomatic thoracolumbar or lumbar kyphosis, and 82 age-matched patients with postmenopausal osteoporosis without prevalent vertebral fractures. Spinopelvic parameters were evaluated with standing lateral spine radiography, and QOL was evaluated with the Japanese Osteoporosis QOL Questionnaire (JOQOL), SF-36, and Roland-Morris Disability Questionnaire (RDQ). RESULTS Lumbar kyphosis angle, sagittal vertical axis, and pelvic tilt were significantly improved postoperatively. QOL evaluated with all three questionnaires also significantly improved after 6 months postoperatively, particularly in domain and subscale scores for pain and general/mental health. However, these radiographic parameters, total JOQOL score, SF-36 physical component summary score, and RDQ score were significantly inferior compared with non-operated controls. CONCLUSIONS The results indicate that spinal global alignment and QOL were significantly improved after corrective spinal surgery using multilevel PLIF for patients with osteoporosis and spinal kyphosis but did not reach the level of non-operated controls.
Collapse
|
88
|
Okumura T, Shimada Y, Sakurai T, Hori R, Nagata T, Sakai Y, Tsukada K. Abnormal cell proliferation in the p75NTR-positive basal cell compartment of the esophageal epithelium during squamous carcinogenesis. Dis Esophagus 2015; 28:634-43. [PMID: 24888722 DOI: 10.1111/dote.12245] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The low affinity neurotrophin receptor p75NTR is known to be expressed in the mitotically quiescent basal layer (BL) of the normal esophageal epithelium. The aim of the present study was to detect oncogenic changes in the p75NTR-positive BL during esophageal squamous carcinogenesis. The normal epithelium (NE), low-grade intraepithelial neoplasia (LGN), high-grade intraepithelial neoplasia (HGN), and esophageal squamous carcinoma (SCC), in which invasion was limited to the muscularis mucosa, were obtained from surgically removed esophagi. The expression of p75NTR, the proliferation marker ki67, hTERT, p53, and p63 was examined immunohistochemically. The expression of p75NTR was detected in these tissues with average staining indexes (number of stained cells/100 nucleated cells; SI) of 1.00, 0.99, 0.81, and 0.73, respectively. The expression of ki67 in the BL significantly increased with the progression from LGN to HGN. The expression of hTERT and p53 significantly increased with the progression from NE to LGN, and then increased in a stepwise manner in HGN and SCC, with SI (hTERT/p53) of 0.10/0.11, 0.32/0.45, 0.50/0.72, and 0.65/0.61, respectively. The expression of p63 showed no significant difference among NE, LGN, HGN, and SCC, with SI of 0.82, 0.77, 0.85, and 0.87, respectively. A correlation was observed between the expression of ki67 and p53 (P = 0.005), while a negative correlation was found between p75NTR and hTERT (P = 0.01). Our results demonstrated that phenotypic changes from quiescent to active proliferation in the p75NTR-positive BL occurred during the progression from LGN to HGN. The altered expression of hTERT and p53 in the BL was detected in LGN, which suggested that additional oncogenic events that disrupt mitotic regulation in the p75NTR-positive quiescent BL may play a crucial role in malignant transformation. Further investigations using the isolation and tracing of p75NTR-positive cells in precancerous epithelia may provide us with a better understanding of squamous carcinogenesis.
Collapse
|
89
|
Hishinuma Y, Kikuchi A, Shimada Y, Kashiwai T, Hata S, Yamada S, Muroga T, Sagara A. Development of MgB2 superconducting wire for the low activation superconducting magnet system operated around core D-T plasma. FUSION ENGINEERING AND DESIGN 2015. [DOI: 10.1016/j.fusengdes.2015.05.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
90
|
Yoshida Y, Yamazaki K, Mizusawa J, Satoh M, Hinoi T, Tsuchida A, Otsuka K, Sato T, Watanabe M, Baba H, Kimura H, Idani H, Kanazawa A, Fukunaga M, Okuda J, Tajima Y, Hasegawa H, Katayama H, Hamaguchi T, Shimada Y. 2129 Predictive factor for toxicities and treatment termination in adjuvant capecitabine therapy for stage III colorectal cancer; based on the data of a randomized trial, JCOG0910. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31051-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
91
|
Sunami K, Furuta K, Tsuta K, Nakaoku T, Shimada Y, Watanabe S, Nokihara H, Sasada S, Ohe Y, Kohno T. 463 Multiplex detection of 17 kinds of oncogenic fusion and aberrant transcripts in formalin-fixed, paraffin embedded tissues of lung adenocarcinoma by molecular counting. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30297-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
92
|
Tada K, Shoji H, Kitano S, Nishimura T, Shimada Y, Nagashima K, Ito A, Honma Y, Iwasa S, Okita N, Takashima A, Kato K, Yamada Y, Katayama N, Boku N, Heike Y, Hamaguchi T. 406 Identification of an immunological prognostic factor for metastatic colorectal cancer patients treated with first-line oxaliplatin-based chemotherapy. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30240-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
93
|
Chau I, Fuchs C, Muro K, Tomasek J, Van Cutsem E, Cho J, Oh S, Safran H, Bodoky G, Shimada Y, Dumitru F, Passalacqua R, Ohtsu A, Hsu Y, Liepa A, Chandrawansa K, Emig M, Ferry D, Wilke H, Al-Batran S. 2343 Quality of life (QoL) as a prognostic factor for survival in previously treated advanced gastric or gastroesophageal junction (GEJ) cancer: Analysis of pooled data from two phase 3 studies (REGARD and RAINBOW). Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31259-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
94
|
Katayama H, Mizusawa J, Nakamura K, Okajima M, Takemasa I, Kubo Y, Tanaka J, Hanai T, Okuda J, Yatsuoka T, Fukunaga M, Miyajima N, Otsuka K, Akagi Y, Akagi T, Inomata M, Shimada Y, Kitano S. 2003 Institutional heterogeneity of survival and morbidity in laparoscopic surgery for colorectal cancer: From the data of a randomized controlled trial comparing open and laparoscopic surgery (JCOG0404). Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30929-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
95
|
Fujii S, Inomata M, Akagi T, Katayama H, Mizusawa J, Saito S, Saida Y, Munakata Y, Sato T, Bandou H, Sekimoto M, Yamamoto H, Shimada Y, Kitano S. 900 Transitional impact of short and long-term outcomes of a randomized controlled trial to evaluate laparoscopic versus open surgery for colorectal cancer from Japan Clinical Oncology Group Study JCOG0404. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(15)30014-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
96
|
Yao J, Fazio N, Singh S, Buzzoni R, Carnaghi C, Wolin E, Tomasek J, Raderer M, Lahner H, Voi M, Pacaud L, Lincy J, Sachs C, Valle J, Delle Fave G, Van Cutsem E, Tesselaar M, Shimada Y, Oh D, Strosberg J, Kulke M, Pavel M. 5LBA Everolimus in advanced nonfunctional neuroendocrine tumors (NET) of lung or gastrointestinal (GI) origin: Efficacy and safety results from the placebo-controlled, double-blind, multicenter, Phase 3 RADIANT-4 study. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31928-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
97
|
Shoji H, Heike Y, Tada K, Kitano S, Nishimura T, Shimada Y, Nagashima K, Ito A, Honma Y, Iwasa S, Okita N, Takashima A, Kato K, Yamada Y, Boku N, Hamaguchi T. 2386 Association between the peripheral immune status of granulocytic myeloid-derived suppressor cells and progression-free survival chemotherapy. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31302-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
98
|
Nakagawa Y, Shimada Y, Kinai E, Kawasaki Y, Maruoka Y, Yamamoto K, Oka S. Long-handle toothbrush for haemophiliacs with severe elbow arthropathy. Haemophilia 2015; 21:e481-3. [PMID: 26172947 DOI: 10.1111/hae.12751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2015] [Indexed: 11/28/2022]
|
99
|
Hatanaka T, Kakizaki S, Yuhei S, Takeuchi S, Shimada Y, Takizawa D, Katakai K, Sato K, Yamada M. Percutaneous radiofrequency ablation for hepatocellular carcinoma located in the caudate lobe of the liver. Acta Gastroenterol Belg 2015; 78:267-273. [PMID: 26448406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
AIM This study aimed to evaluate the effectiveness and safety of radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC) located in the caudate lobe of the liver. PATIENTS AND METHODS Between 2012 April and 2014 February, 142 patients with HCC meeting the Milan criteria were enrolled in this study. Of these patients, nine patients had HCC located in the caudate lobe (caudate group). Six of the nine cases were located in the Spiegel lobe, two cases were located in the paracaval portion and one case was located in the caudate process. We evaluated the local recurrence rate and RFA-related complications in the caudate group and non-caudate group. RESULTS The local recurrence rate in the caudate group was 12.5% at 1 year and 12.5% at 2 years, while the local recurrence rate in the non-caudate group was 14.9% at 1 year and 29.0% at 2 years; there were no significant differences between the groups. No complications were observed in the caudate group, and minor complications were observed in six patients (4.5%) in the non-caudate group. No major complications or mortalities were observed in either group, and the complication rates were not significantly different between the groups (P = 1). CONCLUSIONS RFA for HCC in the caudate lobe and the non-caudate lobe has equivalent effectiveness and safety. RFA is a promising treatment option for HCC arising in the caudate lobe.
Collapse
|
100
|
Turkistani A, Nakashima S, Shimada Y, Tagami J, Sadr A. Microgaps and Demineralization Progress around Composite Restorations. J Dent Res 2015; 94:1070-7. [PMID: 26082389 DOI: 10.1177/0022034515589713] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study investigated the influence of adhesives and marginal sealing on demineralization progress using optical coherence tomography (OCT). Cavities (4 × 2 mm) were prepared in bovine incisors and restored using Clearfil SE Protect (SP), Bond Force (BF), Scotchbond Universal (SB), or G-Bond Plus (GB), followed by Estelite Flow Quick flowable composite. The control group received no adhesive (n = 10). After 3-d incubation in artificial saliva and 10,000 thermal cycles, gaps at enamel and dentin margins were measured at 8 locations on cross-sectional images obtained from each restoration using swept-source OCT at 1310-nm wavelength. Specimens were demineralized using acidified gel (pH = 4.5) for 5 wk and scanned every week to monitor the lesion progress at the same marginal locations. Repeated-measures analysis of variance showed that demineralization period and adhesive type and their interaction had a significant effect on the lesion size in both substrates (P < 0.001). SP, BF, and SB had significantly lower enamel and dentin initial gaps than the control and GB (P < 0.05). Enamel lesion progress was slower in the fluoride-releasing adhesives SP and BF and significantly different from SB, GB, and the control (P < 0.001). SP and BF dentin lesions were significantly different from GB and the control (P < 0.001), but not from SB (P > 0.05). A significant positive correlation (P < 0.05) was found between initial gap length and formed lesion size in both substrates, which was stronger in enamel (r = 0.63) than dentin (r = 0.35). Microgaps forming at the margins of restorations depend on adhesives and significantly contribute to the progress of demineralization around the margins, while fluoride release may decrease the rate of progression.
Collapse
|