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Topic Review
PEEK in Fixed Dental Prostheses
The success of a fixed dental restoration depends on three key factors: biomechanical behavior (wear resistance and fracture resistance), marginal fit, and aesthetics, generating extremely strict demands for the restoration material. Zirconia has become a popular alternative to metal in fixed dental prostheses, known for its excellent aesthetics. More importantly, zirconia exhibits better wear resistance than metal and alloys. PEEK is proposed as a promising alternative material to zirconia because of its superior mechanical properties. PEEK is also significantly less abrasive than zirconia. 
  • 653
  • 24 Jun 2022
Topic Review
Pediatric Dentistry
Pediatric dentistry is the branch of dentistry dealing with children's oral health through the education, promotion, prevention and care of oral pathologies. Oral health is an essential part of the overall health and wellbeing. Good oral health needs not only sound teeth and periodontium, but also the wellbeing of all structures of the mouth, jaw, oral, and peri-oral tissues. Most oral health conditions are largely preventable in children and can be treated in their early stages. Caries represent one of the most common non-communicable diseases and the most prevalent among oral diseases in childhood, despite being easily prevented. Factors contributing to oral diseases are an unhealthy diet (rich in fermentable sugars), inadequate oral hygiene, and low fluoride exposure.
  • 656
  • 03 Sep 2021
Topic Review
Paraprobiotics in Non-Surgical Periodontal Therapy
Periodontal disease represents a progressive destruction of tooth-supporting tissues. Recently, paraprobiotics are regarded as an adjunctive therapy to non-surgical periodontal therapy (Scaling and Root Planing, SRP). Paraprobiotics are defined as “inactivated microbial cells (non-viable) that confer a health benefit to the consumer" and their use for oral health deserves to be further tested. 
  • 512
  • 14 Feb 2022
Topic Review
Ozone Form of Application in Pediatric Dentistry
Ozone is a great oxidizing agent found in nature as a trivalent oxygen (O3). It is a colorless gas with a strong smell. It exists at the ground level as an air pollutant and a constituent of metropolitan smog, as well as in the Earth’s upper atmosphere, in the stratosphere, as a naturally defensive layer from ultraviolet rays. Ozone therapy is suggested in the management of deep dental caries, Early Childhood Caries (ECC), molar incisor hypo-mineralization (MIH), root canal therapy, remineralization, dental hygiene, and dental prophylaxis, in young children and uncooperative pediatric patient. The main forms of application are gaseous ozone, ozonated water and ozonated oil.
  • 480
  • 14 Nov 2022
Topic Review
Oxidative Stress in Periodontal Disease
Periodontal disease dominates as the most common inflammatory disease in the oral cavity. There is growing evidence on the involvement of oxidative stress, which is simply described as the imbalance between oxidants and antioxidants in favor of the former, in the initiation and progression of periodontal disease. Redox mechanistic insights that underlie immuno-inflammatory pathway may thus advance our understanding about periodontal pathogenesis, serving as the background for the development of efficient strategies for periodontal disease prevention and treatment.
  • 1.1K
  • 15 Jan 2021
Topic Review
Overview of COVID-19-Associated Mucormycosis
Immune-compromised diseases lead to a majority of opportunistic conditions such as oral fungal infections, also known as oral mycosis. Often, the impairment of host resistance leads to the initiation of pathogenic conditions in the oral cavity, and progression through local colonization. The use of immunosuppressive drugs and immunodeficiency upon viral infection, especially in COVID-19 patients, has led to a significant increase in the frequency of oral mycosis globally. 
  • 476
  • 27 May 2022
Topic Review
Outcomes of Titanium and Zirconia Implant Abutments
The characteristics of the implant prosthetic abutment are an influential factor which may impact early bone remodeling and soft tissue integration. The abutment material influences the response of both the soft and hard tissues surrounding an implant, making the choice of the prosthetic abutment a crucial phase for the success of implant-supported rehabilitations.
  • 621
  • 30 Aug 2022
Topic Review
Osteoimmunology in Periodontitis
Periodontitis is one of the most common oral diseases resulting in gingival inflammation and tooth loss. Growing evidence indicates that it results from dysbiosis of the oral microbiome, which interferes with the host immune system, leading to bone destruction. Immune cells activate periodontal ligament cells to express the receptor activator of nuclear factor kappa-B (NF-κB) ligand (RANKL) and promote osteoclast activity. Osteocytes have active roles in periodontitis progression in the bone matrix. Local proteins are involved in bone regeneration through functional immunological plasticity.
  • 680
  • 02 Jun 2022
Topic Review
Orthodontic Tooth Movement
Alveolar bone remodeling in orthodontic tooth movement (OTM) is a highly regulated process that coordinates bone resorption by osteoclasts and new bone formation by osteoblasts. Mechanisms involved in OTM include mechano-sensing, sterile inflammation-mediated osteoclastogenesis on the compression side and tensile force-induced osteogenesis on the tension side. Several intracellular signaling pathways and mechanosensors including the cilia and ion channels transduce mechanical force into biochemical signals that stimulate formation of osteoclasts or osteoblasts. To date, many studies were performed in vitro or using human gingival crevicular fluid samples. Thus, the use of transgenic animals is very helpful in examining a cause and effect relationship. Key cell types that participate in mediating the response to OTM include periodontal ligament fibroblasts, mesenchymal stem cells, osteoblasts, osteocytes, and osteoclasts. Intercellular signals that stimulate cellular processes needed for orthodontic tooth movement include receptor activator of nuclear factor-κB ligand (RANKL), tumor necrosis factor-α (TNF-α), dickkopf Wnt signaling pathway inhibitor 1 (DKK1), sclerostin, transforming growth factor beta (TGF-β), and bone morphogenetic proteins (BMPs). In this review, we critically summarize the current OTM studies using transgenic animal models in order to provide mechanistic insight into the cellular events and the molecular regulation of OTM.
  • 955
  • 26 May 2021
Topic Review
Oral Papillomatosis
Oral papilloma lesions may appear as a result of HPV infection, or not, and only special molecular methods could differentiate them. Low-risk and high-risk HPV types could induce oral HPV papillomatosis with different natural evolution, clearance and persistence mechanisms. The pathogenic mechanisms are based on the crosstalk between the oral epithelial and immune cells and this very efficient virus. According to the degree of malignity, three types of papillomatous lesions can be described in the oral cavity: benign lesions, potential malign disorders and malignant lesions. The precise molecular diagnostic is important to identify the presence of various virus types and also the virus products responsible for its oncogenicity. An accurate diagnostic of oral papilloma can be established through a good knowledge of etiological and epidemiological factors, clinical examination and laboratory tests. 
  • 480
  • 01 Sep 2022
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