Christian Ralf Gernhardt

ORCID: 0000-0002-4171-761X
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About
Contact & Profiles
Research Areas
  • Dental materials and restorations
  • Dental Erosion and Treatment
  • Endodontics and Root Canal Treatments
  • Dental Anxiety and Anesthesia Techniques
  • Dental Trauma and Treatments
  • Dental Implant Techniques and Outcomes
  • Dental Health and Care Utilization
  • Head and Neck Cancer Studies
  • Oral health in cancer treatment
  • Advanced Radiotherapy Techniques
  • Dental Radiography and Imaging
  • Dental Research and COVID-19
  • Salivary Gland Tumors Diagnosis and Treatment
  • Surgical Sutures and Adhesives
  • Oral microbiology and periodontitis research
  • Occupational health in dentistry
  • Periodontal Regeneration and Treatments
  • Mesenchymal stem cell research
  • Orthodontics and Dentofacial Orthopedics
  • dental development and anomalies
  • Effects of Radiation Exposure
  • Botulinum Toxin and Related Neurological Disorders
  • Pain Management and Opioid Use
  • Occupational exposure and asthma
  • Health disparities and outcomes

Martin Luther University Halle-Wittenberg
2010-2025

Zentrum für Zahn-, Mund- und Kieferheilkunde Poliklinik für Zahnerhaltung und Parodontologie
2023

Wittenberg University
2022

University Hospital in Halle
2018

Klinik und Poliklinik für Psychiatrie und Psychotherapie
2017

Poliklinik für Zahnerhaltung und Parodontologie
2015

Luther University
2013

Abstract Aim To present a clinical case that illustrates the toxicity of concentrated sodium hypochlorite (NaOCl) on vital tissues. Summary The severe consequences extruding NaOCl into periradicular tissues during root canal irrigation are described. After diagnosis external resorption in tooth 34, endodontic treatment was initiated. Following with solution, rapidly developing swelling and haematoma were visible. During next few days, an extensive bruise local necrosis oral mucosa developed....

10.1111/j.0143-2885.2004.00804.x article EN International Endodontic Journal 2004-03-29

Abstract Background The aim of the present study was to evaluate recovery potential parotid glands after using either 3D-conformal-radiotherapy (3D-CRT) or intensity-modulated radiotherapy (IMRT) by sparing one single gland. Methods Between 06/2002 and 10/2008, 117 patients with head neck cancer were included in this prospective, non-randomised clinical study. All treated curative intent. Salivary gland function assessed measuring stimulated salivary flow at beginning, during end as well 1,...

10.1186/1748-717x-6-125 article EN cc-by Radiation Oncology 2011-09-27

Background and Objectives: Endodontic success depends on eliminating infection creating a durable seal to prevent recontamination. The goal of this study was assess the impact different ISO sizes obturation quality using two reciprocating single-file systems, WaveOne® Gold Procodile®, in canal morphologies. Material Methods: Overall, 140 root canals from human permanent teeth were randomly assigned 14 groups based selected straight curved curvatures, file files 20, 25, 45, Procodile® 40,...

10.3390/medicina61030465 article EN cc-by Medicina 2025-03-07

Summary The purpose of this controlled prospective clinical study was to compare the performance self‐etching adhesive system AdheSE and established total‐etch Excite in classes I II cavities for a period 2 years. Fifty patients participated study. Each received two restorations, one with AdheSE, by calibrated, non‐blinded operator. resin composite used restore teeth Tetric Ceram HB. One blinded clinician re‐evaluated restorations at baseline, after 6, 12 24 months placement using modified...

10.1111/j.1365-2842.2007.01745.x article EN Journal of Oral Rehabilitation 2007-05-23

This study evaluated the influence of irradiation on dentin bond strength. Sixty irradiated and 60 non-irradiated human third molars were used. The dose Gy was fractionally applied over 6 weeks (2 day(-1), 5 days week(-1). All teeth prepared in a special manner allowing simulation intra-pulpal pressure perfusion. Dentin specimens with thickness 2.0 mm obtained under standardized conditions. randomly assigned to four experimental groups. Tensile strength different bonding agents (Scotchbond...

10.1046/j.1365-2842.2001.00758.x article EN Journal of Oral Rehabilitation 2001-09-01

Vitamin C is one of the major extracellular nonenzymatic antioxidants involved in biosynthesis collagen. It promotes growth fibroblasts, wound healing processes, and enhances survival differentiation osteoblasts. The potential effects ascorbic acid on human dental pulp cells (DPC) apical papilla (CAP) used actual regenerative endodontic procedures remain largely unknown. In this study, we investigated possible employment therapies DPC CAP.Nine extracted wisdom teeth were selected for study....

10.3390/jcm12031196 article EN Journal of Clinical Medicine 2023-02-02

IGF-1 regulates the metabolism of hard dental tissue through binding to receptor on target cells. Furthermore, IGF-binding-protein-3 promotes accessibility IGF-1. The aim this study was investigate expression IGF-1, IGFBP-3 and IGF-1R in STRO-1-positive pulp stem cells (DPSCs) fully impacted wisdom teeth relation tooth development. Third molars were surgically removed from 60 patients classified into two groups: showing ongoing development (group 1) that had completed root shaping 2)....

10.2334/josnusd.55.319 article EN Journal of Oral Science 2013-01-01

The aim of this clinical study was to evaluate the impact an additional use a flowable composite on success Class I and II restorations. Furthermore, different criteria were recorded determine if combination with material shows significant advantages compared alone. In 50 patients, one cavity solely filled nano-hybrid (control group) second in layer (test using universal adhesive system self-etch modus. Clinical assessments performed according modified proposed by USPHS/Ryge. After 24...

10.3390/app13074224 article EN cc-by Applied Sciences 2023-03-27

The aim of this study was to compare the mechanical strength different joints made by conventional brazing, TIG and laser welding with without filling material. Five standardized joining configurations orthodontic wire in spring hard quality were used: round, cross, 3 mm length, 9 length 7 band. five methods: tungsten inert gas (TIG) For original for each kind joint configuration or connecting method 10 specimens carefully produced, totalizing 240. fracture strengths measured a universal...

10.1590/s1678-77572008000500005 article EN cc-by Journal of Applied Oral Science 2008-10-01

The aim of this study was to compare the mechanical strength and microhardness joints made by conventional brazing tungsten inert gas (TIG) laser welding. A standardized end-to-end joint configuration orthodontic wire material in spring hard quality used. were using five different methods: (soldering > 450°C) with universal silver solder, two TIG, welders. Laser parameters welding conditions used according manufacturers' guidance. tensile strengths measured a testing machine (Zwick 005)....

10.1093/ejo/cjn022 article EN European Journal of Orthodontics 2008-07-09
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