Şeyda Erşahan

ORCID: 0000-0002-0354-5108
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About
Contact & Profiles
Research Areas
  • Dental Radiography and Imaging
  • Endodontics and Root Canal Treatments
  • Dental materials and restorations
  • Oral microbiology and periodontitis research
  • Orthodontics and Dentofacial Orthopedics
  • Occupational health in dentistry
  • Dental Trauma and Treatments
  • Laser Applications in Dentistry and Medicine
  • dental development and anomalies
  • Dental Education, Practice, Research
  • Dental Anxiety and Anesthesia Techniques
  • Dental Erosion and Treatment
  • Oral and Maxillofacial Pathology
  • Inflammatory mediators and NSAID effects
  • Linguistics and Cultural Studies
  • HIV/AIDS oral health manifestations
  • Craniofacial Disorders and Treatments
  • Dental Research and COVID-19
  • Streptococcal Infections and Treatments
  • Tribology and Lubrication Engineering
  • Antifungal resistance and susceptibility
  • Bone Metabolism and Diseases
  • Fluoride Effects and Removal
  • Neonatal and Maternal Infections
  • High Altitude and Hypoxia

Istanbul Medipol University
2018-2025

Sağlık Bilimleri Üniversitesi
2022

American Association of Endodontists
2018

Beytepe Asker Hastanesi
2014-2018

Mareşal Çakmak Askeri Hastanesi
2016

Bezmiâlem Vakıf Üniversitesi
2016

Erzurum Regional Training and Research Hospital
2015

Turkish Armed Forces
2009-2010

The objective of this study was to evaluate the discolouration effects artificial saliva, granule lemon juice, coffee (without sugar), coca cola, sour cherry fresh carrot juice and red wine on resin-based composite materials that are commonly used in restorative dentistry.Colour four brands resin composites (Filtek Z 250 (3M Espe), Filtek Supreme Quadrant (Cavex), Charisma (Heraeus-Kulzer)) A2 shade measured after one day immersion eight different solutions. Colour measurements were obtained...

10.1055/s-0039-1697405 article EN cc-by-nc-nd European Journal of Dentistry 2009-01-01

To assess and compare the water sorption, solubility apical sealing ability of iRoot SP three other widely used root canal sealers.Solubility was assessed by immersing standardized samples calcium silicate- (iRoot SP), hydroxide- (Sealapex), methacrylate resin- (EndoREZ) epoxy (AH Plus) based sealers in distilled measuring weight gain loss at 6 h, 24 h daily for 14 days. Roots extracted mandibular premolars (n = 80) were prepared with 0.04-taper nickel-titanium rotary files to a final size...

10.3109/00016357.2012.734410 article EN Acta Odontologica Scandinavica 2012-10-22

This study compared the efficacy of apicoectomy and apical curettage with without leukocyte- platelet-rich fibrin (L-PRF) in treating large periapical lesions. Sixty-four adults (30 male, 34 female) a previously endodontically treated tooth lesion were randomized into four groups (n = 16): retrograde obturation (RG), orthograde (OG), RG + L-PRF, OG L-PRF. All participants underwent root canal retreatment two sessions. The group root-end resection MTA obturation, L-PRF application to bone...

10.1038/s41598-025-92787-y article EN cc-by-nc-nd Scientific Reports 2025-03-08

Background Gas expansion in body cavities due to pressure changes at high altitudes can cause barodontalgia. This condition may compromise flight safety. Aim To investigate relationships among barodontalgia awareness, dental visit frequency, and prevalence civilian military pilots operating altitudes. Materials Methods Civilian from Turkish Airlines the Air Force, flying between November 2022 January 2023, participated this study. A 20-question survey was administered 750 pilots, covering...

10.7717/peerj.17290 article EN cc-by PeerJ 2024-04-19

Abstract The purpose of the current study was to determine similarities maxillary and mandibular third molars with other molar teeth. A total 2016 extracted permanent teeth were evaluated. divided into six groups. stored in 5% nitric acid solution for 7 days, then placed increasing concentrations ethyl alcohol. rendered transparent by immersion xylene 4 days until complete transparency achieved. Three roots present 93.0% molars, 91.3% second molars. Among 35.5% single‐rooted 24.9% had single...

10.1111/j.1747-4477.2010.00254.x article EN Australian Endodontic Journal 2010-09-01

Endodontic originated chronic apical periodontitis (AP) is an inflammatory disease of periapical tissue. High-sensitivity C-reactive protein (hsCRP) as marker and hemogram indexes provide valuable information to clinicians for diagnosis, screening follow-up various diseases. The aim this study was investigate AP in terms its association with indices hsCRP levels.Study includes 104 patients 40 participants the control group. 160 teeth were diagnosed through digital radiographic images scored...

10.1080/00016357.2018.1522447 article EN Acta Odontologica Scandinavica 2018-11-03

10.1016/j.ajodo.2015.02.026 article EN American Journal of Orthodontics and Dentofacial Orthopedics 2015-06-29

Aim. The aim of this clinical study was to identify changes in pulpal blood flow (PBF) human central incisors resulting from short- and long-term intrusive orthodontic forces mini-implants. Materials methods. A total 40 sound upper lateral 20 patients scheduled for intrusion reasons were divided into two groups. From each group, teeth subjected force mini-implants (Group 1 = Light Force: g; Group 2 Heavy 120 g), whereas the remaining contralateral not served as controls. Laser-Doppler...

10.3109/00016357.2013.867362 article EN Acta Odontologica Scandinavica 2014-01-20

We aimed to assess the relationship between age, pulpal blood flow (PBF), and orthodontic treatment outcomes. Decreased supply pulp cells commonly occurs with age can change response of tooth movement. This study was conducted in 28 human subjects divided into 2 groups according age. A laser Doppler flowmeter used record teeth prior during course (days 1, 3, 7; week 3; month 1). Data were analyzed using Wilcoxon signed-rank Mann-Whitney U tests. Mean PBF values significantly higher young...

10.2334/josnusd.17-0316 article EN Journal of Oral Science 2018-01-01

The objective of the present study is to evaluate effects Er:YAG laser debonding ceramic brackets on bond strength and amount adhesive resin remnant.Twenty human mandibular incisors were randomly divided into two groups 10 polycrystalline (Transcend series 6000, 3M Unitek, Monrovia, CA, USA) bonded enamel surfaces. Group 1 was control group in which no application performed prior shear (SBS) testing. In 2, applied 3W power for 6 seconds using scanning method. tested SBS with an Instron...

10.17096/jiufd.39114 article EN cc-by-nc-nd Journal of İstanbul university faculty of dentistry/Journal of Istanbul University faculty of dentistry 2016-03-28

Abstract Introduction/Objective: The aim of this prospective study was to evaluate the effects maxillary first molar intrusion on pulpal blood flow (PBF) in humans as recorded by laser Doppler flowmetry (LDF). Materials and methods: Maxillary molars 16 participants were divided into two groups. In group, 20 teeth 10 subjected an intrusive force 100 g delivered from mini-implants for 6 months. A control group subjects (12 teeth) received no orthodontic treatment. LDF measurements at baseline...

10.2478/aoj-2014-0012 article EN cc-by Australasian Orthodontic Journal 2014-11-01

Mechano-sensitive odontoblast cells, which sense mechanical loading and various stresses in the tooth structure, synthesize early signaling molecules such as prostaglandin E2 (PGE2) nitric oxide (NO) an adaptive response. It is thought that these synthesized can be used for diagnosis treatment of periodontal periapical diseases. The aim this study was to investigate relationship between severity apical periodontitis (AP) chronic (CP) serum (s) TNF-α, IL-10, PGE2 NO levels, well levels...

10.1007/s00784-024-05721-3 article EN cc-by Clinical Oral Investigations 2024-05-25

The purpose of the present study was to compare effects three methods removing adhesive on enamel surface roughness and dental pulp temperature.Ninety human maxillary premolars were randomly divided into groups (n=30) according type clean-up procedure: aluminum oxide-based burs, erbium-doped yttrium garnet (Er:YAG) laser, tungsten carbide bur. measured using a non-contact optical profilometer. After first readings (T1), orthodontic brackets attached with composite. teeth debonded bracket...

10.5152/turkjorthod.2019.18063 article EN Turkish Journal of Orthodontics 2019-09-19

Abstract To investigate the efficacy of supplementary use a rotary agitation method [XP‐endo Finisher (XPF)] and sonically‐activated irrigation [EndoActivator (EA)], using droplet digital PCR (ddPCR) on reducing bacterial load in previously root canal treated teeth with apical periodontitis. Twenty patients post‐treatment periodontitis were allocated into two groups according to activation used: XPF EA group. Total loads, as well amount Enterococcus faecalis ( E . ) determined before (S1)...

10.1111/aej.12756 article EN Australian Endodontic Journal 2023-04-07

To compare the effects of different methods surface treatment on enamel roughness.Ninety human maxillary first premolars were randomly divided into three groups (n=30) according to type treatment: I, acid etching; II, Er:YAG laser; III, Nd:YAG laser. The roughness was measured with a noncontact optical profilometer. For each sample, two readings taken across sample-before (T1) and after (T2). parameter analyzed average (Ra). Statistical analysis performed using Paired sample t test post-hoc...

10.17096/jiufd.02142 article EN cc-by-nc-nd Journal of İstanbul university faculty of dentistry/Journal of Istanbul University faculty of dentistry 2016-01-12

Abstract Candida albicans biofilms are commonly associated with severe oral infections. In dentistry, prosthetic and restorative materials potential structures for the adhesion of C. facilitating formation biofilm infection. Three composite resins (Charisma Classic, Sonic Fill, Estelite ∑ Quick) two finishing-polishing systems (Biscover LV, Dental Finishing Disc) were evaluated formation. A assay showed that both resin finishing/polishing procedures affect Specifically, was significantly...

10.1093/mmy/myz095 article EN Medical Mycology 2019-08-29

This study examined the effects of Le Fort I (LF-I) osteotomy on pulpal blood flow (PBF) in maxillary teeth during a 12-month postsurgical period. A laser Doppler flowmeter was used to measure PBF incisors, canines, and first premolars 14 patients undergoing LF-I (study group), 7 mandibular (surgical control nonsurgical controls. The measured at baseline (preoperatively) 1 week 1, 3, 6, 12 months postoperatively similar intervals subjects. Data were evaluated using Kruskal-Wallis post hoc...

10.1097/scs.0000000000000920 article EN Journal of Craniofacial Surgery 2014-08-22

To evaluate the effects of various endodontic regeneration agents on push-out bond strength Endosequence Root Repair Material (ERRM) to root-canal dentin.Fifty single-rooted human teeth were selected and instrumented obtain a standard internal diameter 1.5 mm. Specimens randomly divided into four experimental groups treated with an intracanal medicament [calcium hydroxide (CH), double antibiotic paste (DAP), triple (TAP), TAP amoxicillin (mTAP)] non-treated control group. Medicaments removed...

10.12669/pjms.342.14630 article EN cc-by Pakistan Journal of Medical Sciences 2018-04-05

To evaluate the effects of maxillary canine retraction on pulpal blood flow (PBF) in humans as recorded by laser Doppler flowmetry (LDF).Maxillary canines 24 participants were divided into two groups (n = 12 each). Teeth study group underwent using mini-implants anchorage for approximately 4 months, with 100 g force applied via coil springs. Subjects control received no orthodontic treatment. LDF measurements at baseline (T0); during retraction, hours (T1), 3 days (T2), 7 (T3) and 1 month...

10.3109/00016357.2016.1174295 article EN Acta Odontologica Scandinavica 2016-05-18

Objective: To evaluate the effect of extrusion on immature permanent tooth PBF values during a 6-month post-trauma period and to compare accuracy cold tests pulp sensibility traumatized teeth with that electric (EPT).Methods: The study group comprised 26 extruded maxillary incisors in 25 trauma patients. respective contralateral homologous (n=25) were included as positive control group. Teeth treated by repositioning splinting. Pulp vitality readings for taken LDF, EPT test day...

10.12669/pjms.344.15524 article EN cc-by Pakistan Journal of Medical Sciences 2018-07-13

To compare the accuracy of four different electronic apex locators (EALs) in detecting a position 0.5 mm short major foramen.The actual working length thirty-five extracted human teeth was determined visually as apical foramen. After measurements, measured with EALs (Apex Pointer+, Raypex 5, Apex ID, and 6). Measurements were repeated three times by operators. The data analyzed using intraclass correlation coefficient (ICC), measure analysis variance (rANOVA) Bonferroni post hoc tests....

10.5005/jp-journals-10024-2444 article EN The Journal of Contemporary Dental Practice 2018-01-01

Background/Aim: This study aimed to evaluate the precision of Raypex 6 apex locator in locating apical constriction (AC) and major foramen (MF) during a root canal treatment compared with microscopic evaluation. Another aim present was accuracy presence different irrigating solutions (NaOCl, saline, EDTA, etidronic acid-HEBP). Material Methods: One hundred nine patients were included this randomly assigned into four groups according irrigation solution used; NaOCl, HEBF saline. Electronic MF...

10.5937/bjdm2201015p article EN cc-by Balkan Journal of Dental Medicine 2022-01-01
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