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WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.

Negative / Null Result ReportOpen accessVeterinary medicine

Comparison of the feline Glasgow Composite Measured Pain Scale in a feline population without painful disease at home and in a veterinary hospital: a prospective clinical study

Virginia Rega, Stefanie Brause, Sabine BR Kästner et al. · 2025 · Journal of Feline Medicine and Surgery

Objectives The objective of this study was to compare the use of the feline Glasgow Composite Measured Pain Scale (CMPS-f) at home and in a veterinary hospital. The hypothesis was that pain-free cats would score higher in the CMPS-f when in a stressful situation than when calm and relaxed; that is, healthy but stressed cats could appear to be in discomfort or pain. Methods Healthy, non-painful adult cats owned by clinical staff were included in a prospective clinical trial with two observers (caregiver [CG] and researcher). Cats were scored by their CG at home (H), after arrival at the clinic

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Negative / Null Result ReportOpen accessComputer applications to medicine. Medical informatics

Adherence to Blended or Face-to-Face Smoking Cessation Treatment and Predictors of Adherence: Randomized Controlled Trial

Siemer, Lutz, Brusse-Keizer, Marjolein G J, Postel, Marloes G et al. · 2020 · Journal of Medical Internet Research

BackgroundBlended face-to-face and web-based treatment is a promising way to deliver smoking cessation treatment. Since adherence has been shown to be an indicator of treatment acceptability and a determinant for effectiveness, we explored and compared adherence and predictors of adherence to blended and face-to-face alone smoking cessation treatments with similar content and intensity. ObjectiveThe objectives of this study were (1) to compare adherence to a blended smoking cessation treatment with adherence to a face-to-face treatment; (2) to compare adherence within the blended treatment to

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Negative / Null Result ReportOpen accessSurgery

Fine versus Sclerotic Trabecular Bone Remodeling/Restructure: A Refined Radiographic Predictor for Long-Term Segment Stability After Posterior Lumbar Interbody Fusion

Yasuhiro Nagatani MD, Naoki Segi MD, Sadayuki Ito MD et al. · 2026 · Global Spine Journal

Study Design Retrospective cohort study. Objectives Successful bone fusion is crucial for favorable posterior lumbar interbody fusion (PLIF) outcomes. While trabecular bone remodeling (TBR) indicates osseointegration, its interpretation remains uncertain. This study aimed to clarify the clinical significance of distinct TBR types—fine TBR (fTBR) and sclerotic TBR (sTBR)—as seen on computed tomography (CT) scans and to evaluate their predictive value for segment stabilization and complete bone fusion and their relationship with interbody cage materials. Methods Seventy-one patients who underwen

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Negative / Null Result ReportOpen accessMedicine

Preventing Traumatic Urinary Catheter Insertion Through a Computerized Ordering System: Quasi-experimental Study From a Tertiary Academic Center

Ted Lee, Heiko Yang, David Haneuer et al. · 2018 · Hospital Practices and Research

Background: Iatrogenic urethral injury is a well-known risk of urinary catheter insertion. Associated morbidities include stricture formation, catheter associated infection, risk for instrumentation, and extended length of stay. Yet, insufficient attention is paid to its prevention. Objective: This study aimed to assess the effectiveness of a computerized ordering system in reducing iatrogenic urethral injuries in men at high risk for iatrogenic urethral injury from traumatic catheterization. Methods: A pre-post study was performed to assess the impact of a computerized ordering system that re

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Negative / Null Result ReportOpen accessPsychiatry

A comparative study of behavioral and psychological symptoms in patients with vascular and Alzheimer dementia

S. Javed, R. K. Gaur, A. Ibrahim et al. · 2017 · Sri Lanka Journal of Psychiatry

Background Dementia is a common, disabling disorder of the elderly. With the steady growth in the older population, the rate of dementia is expected to increase two fold by 2030 and three fold by 2050. Dementia of Alzheimer Type (DAT) and vascular dementia (VD) are among the most common types of dementia. Behavioral and psychological symptoms of dementia (BPSD) are associated with increased patient morbidity and carer burden. Aims The objective of this study was to compare symptoms of BPSD in patients with DAT and VD and to explore the correlates of BPSD in patients with DAT and VD. Methods Pe

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Negative / Null Result ReportOpen accessNeoplasms. Tumors. Oncology. Including cancer and carcinogens

The Value of Perioperative Chemotherapy for Patients With Hepatoid Adenocarcinoma of the Stomach Undergoing Radical Gastrectomy

Kai Zhou, Anqiang Wang, Jingtao Wei et al. · 2022 · Frontiers in Oncology

BackgroundHepatoid adenocarcinoma of the stomach (HAS) is a rare type of gastric cancer, but the role of perioperative chemotherapy is still poorly understood. The aim of this retrospective study was to investigate the associations between perioperative chemotherapy and prognosis of HAS.MethodWe retrospectively analyzed patients with locally advanced HAS who received radical surgery in Peking University Cancer Hospital between November 2009 and October 2020. Patients were divided into neoadjuvant chemotherapy-first (NAC-first) group and surgery-first group. The relationships between perioperat

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Negative / Null Result ReportOpen accessDentistry

Chitosan’s effects on the acidity, copper ion release, deflection, and surface roughness of copper-nickel-titanium archwire

Ika Devi, Erliera Sufarnap, Finna et al. · 2023 · Dental Journal

Background: Chitosan has an antimicrobial effect in oral hygiene control. Orthodontists sometimes prescribe mouthwash to adolescent patients. Copper-nickel-titanium (CuNiTi) orthodontic archwire is widely used in orthodontic treatment. Chitosan’s effects on the CuNiTi properties of orthodontic archwire are not generally known. Purpose: This study aimed to measure the acidity, copper ion release, deflection, and surface roughness of CuNiTi orthodontic archwire immersed in artificial saliva and 2% chitosan. Methods: This study comprised experimental laboratory research. Forty-two CuNiTi orthodon

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Negative / Null Result ReportOpen accessMedicine

Report: The effects of topical pleurotus tuberregium (PT) aqueous extract on intraocular pressure in monkeys.

Ghalib A Akinlabi, Paul L Kaufman, Julie A Kiland · 2021 · PLoS ONE

Purpose In earlier experiments in Nigeria, aqueous extract of Pleurotus tuber-regium (PT) had been shown to lower intra ocular pressure (IOP) in a feline model. The aim of the current study was to determine whether PT had the same or a similar IOP-lowering effect in ocularly normal non-human primates. Methods Four monkeys were treated twice daily for 4 days with 2 x 20 μl drops of 50 mg/ml PT (pH = 4.3). The monkeys were sedated with 5-10 mg/kg ketamine HCl IM. PT was administered to the right eye and BSS to the left eye. Baseline IOP was measured just prior to beginning treatment, and on day

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Negative / Null Result ReportOpen accessTherapeutics. Pharmacology

Safety of using the intravenous beta-1-adrenoblocker esmolol in patients with ST-segment elevation myocardial infarction before primary percutaneous coronary intervention

O. A. Saygina, T. S. Sukhinina, M. A. Terenicheva et al. · 2026 · Рациональная фармакотерапия в кардиологии

Aim. To study the safety of using the intravenous beta-blocker (BB) esmolol in the early stages of ST-segment elevation myocardial infarction (STEMI) before primary percutaneous coronary intervention (PCI) based on an analysis of the incidence and clinical significance of adverse events (acute heart failure, hypotension, bradycardia, disorders of atrioventricular conduction (AV conduction), etc.) compared with the control group.Material and methods. The presented study is part of the randomized controlled trial ESMO-VASCMI (ClinicalTrials.gov NCT number 06376630) on the study of the cardioprot

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Negative / Null Result ReportOpen accessMedicine

Association between phthalate exposure and accelerated bone maturation in Chinese girls with early puberty onset: a propensity score-matched case–control analysis

Shurong Huang, Zhe Su, Huiping Su et al. · 2022 · Scientific Reports

Abstract Estrogen can promote the acceleration of bone maturation and phthalate esters (PAEs) have estrogen-mimicking effects. We investigated whether PAEs are associated with the acceleration of bone age (BA) in girls with early onset of puberty (EOP). This case–control study enrolled 254 girls with EOP from the Endocrinology Department at Shenzhen Children’s Hospital between December 2018 and August 2019. Ultra-performance liquid chromatography and tandem mass spectrometry were used to analyze the 10 metabolites of PAEs (mPAEs) in urine samples. BA was measured using an artificial intelligen

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Negative / Null Result ReportOpen accessDiseases of the blood and blood-forming organs

Outcomes of autologous transplantation for multiple myeloma according to different induction regimens

Edvan de Queiroz Crusoe, Fabiana Higashi, Maria Paula Nalesso Camargo Padilha et al. · 2014 · Revista Brasileira de Hematologia e Hemoterapia

Background: Induction therapy followed by high-dose chemotherapy and autologous transplantation is the standard treatment for suitable patients with multiple myeloma. Objective: The aim of this study was to assess whether induction therapy with thalidomidecontaining regimens was associated with improved results compared to vincristine, doxorubicin, and dexamethasone, and whether cyclophosphamide, thalidomide, and dexamethasone were associated with better results than thalidomide and dexamethasone. Methods: The records of 152 patients who underwent autologous transplantation at this institution

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Negative / Null Result ReportOpen accessSpecial aspects of education

Inventory of self-assessed competences: a tool for identifying training strengths and weaknesses in medical and multiprofessional residency programmes for primary health care

Élida de Fátima Diniz Souza, Ana Paula Ramos Machado, José Danúzio Leite de Oliveira et al. · 2025 · BMC Medical Education

Abstract Background In Brazil, residency programmes in Family and Community Medicine (FCM) and Multiprofessional Residency in Family Health (MRFH) are two-year specialisation courses, funded by the federal government, which aim to train professionals to work in Primary Health Care (PHC). The aim of this study was to draw up an inventory of the assessed competences of the residency programmes in the state of Paraíba, Brazil. Our study’s hypothesis is that self-assessment of competences can be a useful tool for monitoring the development of competences in the training of health professionals, co

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Negative / Null Result ReportOpen accessMedicine

25-Hydroxyvitamin D variability within-person due to diurnal rhythm and illness: a case report

Christine B. French, Sharon L. McDonnell, Reinhold Vieth · 2019 · Journal of Medical Case Reports

Abstract Background Vitamin D nutrition research requires accurate measures of circulating 25-hydroxyvitamin D. Our objectives were to test whether a diurnal fluctuation in blood-spot concentrations of 25-hydroxyvitamin D can be demonstrated statistically in a single individual, and whether such fluctuation is affected by the pre-dose versus post-dose timing of the blood draw. Case presentation The participant in this case study was a generally healthy Caucasian woman in her 40s who has taken 5000 IU vitamin D3 supplement at midday for over 1 year. Each blood sample was drawn individually from

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Negative / Null Result ReportOpen accessSpecial aspects of education

Thinking about thinking: changes in first-year medical students’ metacognition and its relation to performance

Wei Han Hong, Jamunarani Vadivelu, Esther Gnanamalar Sarojini Daniel et al. · 2015 · Medical Education Online

Background: Studies have shown the importance of metacognition in medical education. Metacognitive skills consist of two dimensions: knowledge of metacognition and regulation of metacognition. Aim: This study hypothesizes that the knowledge and regulation of metacognition is significantly different at the beginning and end of the academic year, and a correlation exists between the two dimensions of metacognitive skills with academic performance. Methods: The Metacognitive Skills Inventory comprising 52 Likert-scale items was administered to 159 first-year medical students at the University of

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Negative / Null Result ReportOpen accessOrthopedic surgery

Does Weber Classification Predict Patient Reported Outcomes using PROMIS Scores?

Steven M. Hadley BA, John J. Peabody MD, Sarah Westvold MPH et al. · 2024 · Foot & Ankle Orthopaedics

Category: Ankle; Trauma Introduction/Purpose: It remains unclear whether ankle fracture pattern as described by the Weber classification—a reproducible method describing the level of fracture with respect to the distal tibiofibular syndesmosis—impacts outcomes. Patient Reported Outcome Measurement Information System (PROMIS) is a validated measure of outcomes after foot and ankle surgery. To our knowledge, no study has compared PROMIS scores between Weber subtypes. Our study thus examines whether Weber fracture subtype impacts surgical outcomes as measured by PROMIS scores. We hypothesize that

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Negative / Null Result ReportOpen accessPublic aspects of medicine

The Effect of CXWORX Exercises with Inulin Consumption on Oxidative and Antioxidant Stress Indices in Women with Metabolic Syndrome

Zeynab Arbabi, Abdolali Banaiefar, Sajjad Arshadi et al. · 2023 · پیاورد سلامت

Background and Aim: Metabolic syndrome refers to a set of metabolic disorders related to obesity, such as abdominal obesity, increased body fat mass, lipid disorders, hypertension, increased blood glucose, and insulin resistance. The present study was conducted with the aim of determining the effect of 8 weeks of CXWORX exercises combined with inulin consumption on some indicators of oxidative stress in obese women with metabolic syndrome. Materials and Methods: Forty eight obese women with metabolic syndrome in the age range of 30 to 40 years were randomly divided into Control, inulin, CX exe

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Negative / Null Result ReportOpen accessNeurosciences. Biological psychiatry. Neuropsychiatry

Evaluation of ubiquitin C-terminal hydrolase-L1 enzyme levels in patients with epilepsy

Ibrahim Halil YASAK, Mustafa YILMAZ, Murat GÖNEN et al. · 2020 · Arquivos de Neuro-Psiquiatria

ABSTRACT Objective: Ubiquitin C-terminal Hydrolase-L1 (UCH-L1) enzyme levels were investigated in patients with epilepsy, epileptic seizure, remission period, and healthy individuals. Methods: Three main groups were evaluated, including epileptic seizure, patients with epilepsy in the non-seizure period, and healthy volunteers. The patients having a seizure in the Emergency department or brought by a postictal confusion were included in the epileptic attack group. The patients having a seizure attack or presenting to the Neurology outpatient department for follow up were included in the non-se

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Negative / Null Result ReportOpen accessFermentation industries. Beverages. Alcohol

Comparison of the Chemical Properties of Pineapple Vinegar and Mixed Pineapple and Dragon Fruit Vinegar

Antika Boondaeng, Sumaporn Kasemsumran, Kraireuk Ngowsuwan et al. · 2022 · Fermentation

Pineapples are a tropical fruit with high nutritional value and high vitamin and sugar contents. In this study, low-grade pineapples were fermented to produce vinegar using surface culture fermentation (SCF), which involved the addition of dragon fruit juice, to compare the quality and antioxidant activity of different preparations of vinegar. The highest acetic acid concentration (7.35%) was obtained from pineapple vinegar after 20 days of incubation. Vinegar made from mixed pineapple and dragon fruit juice without peel and vinegar with pineapple and dragon fruit juice with peel had acetic ac

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Negative / Null Result ReportOpen accessPublic aspects of medicine

Mediating effects of attitude on the relationship between knowledge and willingness to organ donation among nursing students

Xiaohang Chen, Xin Zhou, Yan Xu et al. · 2024 · Frontiers in Public Health

BackgroundThe current rate of organ donation in China falls significantly below the global average and the actual demand. Nursing students play a crucial role in supporting and promoting social and public welfare activities. This study primary aims to analyze the levels of knowledge, attitudes, willingness toward organ donation, and attitudes toward death among nursing students, and investigate the mediating role of attitude in the relationship between knowledge and willingness. The secondary aims to identify factors that may influence the willingness.MethodsA convenience sample of nursing stu

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Negative / Null Result ReportOpen accessMedicine

Effects of inulin, resistant starch RS3 and their complexes on blood lipid levels and intestinal flora in mice

ZHANG Yanan, MAO Chuanwu, XIONG Chenglong et al. · 2022 · Shanghai yufang yixue

ObjectiveTo explore the effects of different dietary induction models of inulin, resistant starch RS3 and their complexes on the body weight and intestinal flora in mice.MethodsA total of 64 C57BL/6 mice were randomly divided into low-fat control group, low-fat inulin group, low-fat resistant starch RS3 group, low-fat composite group and high-fat control group, high-fat inulin group, high-fat resistant starch RS3 group and high-fat composite group for dietary intervention. The mice were weighed and fresh feces were collected weekly. Diet intervention was continued until the weight of the high-

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Negative / Null Result ReportMedicine

Comparison of temporal versus nasal positioning of iStent Inject W®.

Vermot-Desroches V, Rezkallah A, Kodjikian L et al. · 2026 · Journal francais d'ophtalmologie

Purpose The goal of the present study was to compare the effect of nasal versus temporal placement of the iStent Inject W® during phacoemulsification on intraocular pressure (IOP). Design and participants Over 5 consecutive years, 389 eyes…

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Negative / Null Result ReportOpen accessGynecology and obstetrics

Effect of different ectopic pregnancy treatments on cryopreserved embryo transfer outcomes: A retrospective cohort study

Bingqian Zhang, Lianbao Cao, Lingling Ding et al. · 2017 · Gynecology and Minimally Invasive Therapy

Objective: To evaluate the effects of different treatment methods for previous ectopic pregnancies (EP) on cryopreserved embryo transfer (CET) outcomes. Materials and Methods: This was a retrospective cohort study. Patients with EP histories were divided into four groups based on their previous EP treatments: Group 1—unilateral tubal removal; Group 2—bilateral tubal removal or unilateral tubal removal with contralateral tubal ligation; Group 3—conservative surgery group; and Group 4—conservative medication group. A total of 1333 women with previous histories of being admitted to the hospital f

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Negative / Null Result ReportOpen accessMedicine (General)

Retinal Nerve and Vascular Changes in Prediabetes

Rui Ping Peng, Zi Qian Zhu, Hong Yi Shen et al. · 2022 · Frontiers in Medicine

ObjectiveThis study aimed to observe vascular and neuroretinal alterations in people with prediabetes [impaired fasting glucose (IFG) and impaired glucose tolerance (IGT)] and normal glucose metabolism.MethodsA total of 21 patients with prediabetes (42 eyes) and 20 healthy controls (40 eyes) participated in our study. All patients underwent a complete eye examination [including fundus fluorescein angiography (FFA) and optical coherence tomography (OCT)] and a related general examination (complete biochemical analysis, routine blood tests, and glycosylated hemoglobin).ResultsOn FFA, no patients

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Negative / Null Result ReportOpen accessMedical emergencies. Critical care. Intensive care. First aid

Congestive heart failure and sepsis: a retrospective study of hospitalization outcomes from a rural hospital in Southwest Missouri

Alexandra Skovran, Mason Hinke, Shelly N. B. Sloan et al. · 2022 · Emergency and Critical Care Medicine

Abstract. Background. Sepsis is the leading cause of death in hospitalized patients and significant effort has been made to facilitate early diagnosis and management. However, aggressive treatment can have negative effects, especially in patients with unstable volume status, such as those with congestive heart failure. Methods. We used electronic medical records to perform a retrospective study looking at hospital outcomes in patients from Southwest Missouri who were admitted with sepsis and had a comorbid diagnosis of hypertensive heart failure. Our primary outcome was in-hospital mortality.

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Negative / Null Result ReportOpen accessDentistry

In vitro investigation of the effect of laser on platelet-rich fibrins

Utku Böcüoğlu, Esra Ateş Yıldırım, Selma Erdoğan Düzcü et al. · 2026 · BMC Oral Health

Abstract Objectives This in vitro study aimed to evaluate the effect of laser photobiomodulation on the structural integrity and degradation resistance of two types of platelet-rich fibrin membranes: Leukocyte- and Platelet-Rich Fibrin (L-PRF) and Titanium-Prepared Platelet-Rich Fibrin (T-PRF). Structural changes in the fibrin network were assessed using Scanning Electron Microscopy (SEM) and light microscopy. Materials and methods Our study was performed on 15 systemically healthy individuals and four L-PRF and four T-PRF membranes obtained from each individual, totaling 120 samples. L-PRF wa

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Negative / Null Result ReportOpen accessMedical physics. Medical radiology. Nuclear medicine

The in vivo study on the radiobiologic effect of prolonged delivery time to tumor control in C57BL mice implanted with Lewis lung cancer

Zhu Guo-Pei, Lu Jiade, Xiong Xiao-Peng et al. · 2011 · Radiation Oncology

Abstract Background High-precision radiation therapy techniques such as IMRT or sterotactic radiosurgery, delivers more complex treatment fields than conventional techniques. The increased complexity causes longer dose delivery times for each fraction. The purpose of this work is to explore the radiobiologic effect of prolonged fraction delivery time on tumor response and survival in vivo. Methods 1-cm-diameter Lewis lung cancer tumors growing in the legs of C57BL mice were used. To evaluate effect of dose delivery prolongation, 18 Gy was divided into different subfractions. 48 mice were rando

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Negative / Null Result ReportOpen accessSurgery

Study of the therapeutic strategy to improve survival outcomes from the perspective of perioperative conditions in elderly gastric cancer patients: a propensity score-matched analysis

Eiji Nomura, Takatoshi Seki, Kentaro Yatabe et al. · 2024 · World Journal of Surgical Oncology

Abstract Background Elderly gastric cancer patients (EGCPs) require treatment according to not just the stage of their cancer, but also to their general condition and organ function, and rather than full treatment, the appropriate amount of treatment is necessary. Methods A total of 425 patients who underwent gastrectomy for primary gastric cancer in our institution between April 2013 and March 2020 were classified by age into two groups: elderly patients (EP, age ≥ 80 years, n = 89); and younger patients (YP, age < 80 years, n = 336). The preoperative, intraoperative, and postoperative condit

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Negative / Null Result ReportOpen accessDentistry

Assessment of Debris Extrusion in Curved Canals: An In Vitro Analysis of Various Single-File Endodontic Instrumentation Systems

Muhammad Zubair Ahmad · 2024 · International Journal of Dentistry

Objectives. Rotary single-file endodontic systems are commonly used for root canal treatment. However, very few studies have evaluated the apical extrusion of debris generated by these systems during canal preparation at normal body temperature in laboratory conditions. The aim of this study was to evaluate the amount of apically extruded debris caused by seven different single-file endodontic instrumentation systems at body temperature in mandibular molar teeth with curved root canals. Methods. One hundred forty mandibular first permanent molars were randomly divided into seven groups (n = 20

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