Tooth-base sensitivity is caused by gum recession and exposed dentin
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Medical literature confirms that tooth sensitivity is caused by dentin exposure, which frequently results from gum recession leaving the tooth root vulnerable.
Introduction: Dentin hypersensitivity (DH) is defined as pain caused by dentin exposure in response to various stimuli. Patients with periodontal disease (PD) frequently report DH due to root surface exposure or after periodontal treatment. Bioactive agents derived from calcium and/or silicon-based systems, such as REFIX technology, have been used to promote tooth regeneration, with focus on tooth sensitivity treatment.
Case Report: Based on this, the efficacy of REFIX gel combined with calcium on the treatment of a DH was evaluated in a PD 45-year-old male patient. The patient’s right and left sides were randomly selected to use one of the prophylaxis dental protocols: REFIX dental gel/calcium (RDGCa) (experimental: 13, 14, 15 teeth) or Pumice Stone (PS) (control: 23, 24, 25 teeth). The products were applied using dental polishing brush during 10 seconds in each tooth surface. Schiff Air Index (SAI) for sensitive teeth (0–3) were performed by applying air jet to each tooth’s vestibular surface for 5 seconds after and before the prophylaxis. The patient reported pain and interruption of the stimulus before and after PS prophylaxis (SAI 3 and 3 respectively). There was a reduction in pain when RDGCa protocol was used (SAI 3—before/SAI 1—after). In this instance, the patient felt the stimulus but did not request to be interrupted. This contrasted with the outcomes of the initial stimulus as well as PS.
Conclusion: The results showed that the RDGCa strategy was successful in lowering DH in PD patients.
Dentin hypersensitivity is characterized by transient, sharp pain resulting from dentin exposure due to enamel or cementum loss. Current treatments, which primarily focus on superficial tubule occlusion or nerve desensitization, provide only temporary relief. Copine7 (CPNE7) induces odontoblast differentiation and physiologic dentin regeneration, enabling biological dentin sealing and presenting a novel therapeutic approach. This study reports the first-in-human results of a randomized, double-blind, dose-escalation phase 1/2a clinical trial evaluating the safety, tolerability, preliminary efficacy, and pharmacokinetics of the CPNE7-derived functional peptide (selcopintide) in patients with dentin hypersensitivity. In Part A (Single Ascending Dose, SAD), 24 participants received a single topical application of selcopintide at ascending doses (2.5, 5, and 10 μg/tooth) in a 6:2 randomization ratio (treatment: placebo). In Part B (Multiple Ascending Dose, MAD), 16 participants received three topical applications (5 and 10 μg/tooth) over 15 days (day 1, 8, and 15; visits 2-4) with the same randomization ratio. Efficacy endpoints were assessed by changes in cold water, evaporative air, and tactile sensitivity. In Part B, the 10 μg selcopintide group demonstrated statistically significant reductions from the baseline across all three measures (p < 0.05), with a mean decrease of -23.2 ± 19.4 mm in VAS, the primary efficacy endpoint. All doses were well tolerated, with no serious adverse events and no detectable systemic absorption of selcopintide. These findings support the safety, tolerability, and preliminary efficacy of selcopintide as a novel therapeutic candidate for the treatment of dentin hypersensitivity.
tooth is referred to as gingival recession. This can result in sensitivity or pain from the exposed tooth root surface (dentin is more permeable and soft
In periodontology, gingival grafting, also called gum grafting or periodontal plastic surgery, is a generic term for the performance of any of a number of surgical procedures in which the gingiva (gum tissue) is grafted. The aim may be to cover exposed root surfaces or merely to augment the band of keratinized tissue.
The…
Dentin hypersensitivity (DH, DHS) is dental pain which is sharp in character and of short duration, arising from exposed dentin surfaces in response to
Dentin hypersensitivity (DH, DHS) is dental pain which is sharp in character and of short duration, arising from exposed dentin surfaces in response to stimuli, typically thermal, evaporative, tactile, osmotic, chemical or electrical; and which cannot be ascribed to any other dental disease.
A degree of dentin sensitivity is normal, but pain is not usually experienced in everyday activities like d
The real cause of dentine hypersensitivity is controversial. There have been several theories put forward to try and explain the cause of dentine hypersensitivity. These include the odontoblastic transduction theory, the neural theory and the hydrodynamic theory.
The most commonly accepted model is called the hydrodynamic or fluid movement theory proposed by Brannstrom in 1964. According to this theory, when the exposed dentine surface is subjected to thermal, chemical, tactile or evaporative stimuli, the flow of the fluid within the tubules will be increased.
Fluid movement inside the dentinal tubules may be away from or towards the pulp. Dentine contains many thousands of microscopic tubular structures that radiate outwards from the pulp; these dentinal tubules are typically 0.5-2 micrometres in diameter. Changes in the flow of the plasma-like biological fluid present in the dentinal tubules can trigger mechanoreceptors present on nerves located at the pulpal aspect, thereby eliciting a pain response. This hydrodynamic flow can be increased by cold, (air pressure), drying, sugar, sour (dehydrating chemicals), or forces acting on to the tooth. Hot or cold food or drinks, and physical pressure are typical triggers in those individuals with teeth sensitivity. Movement of dentinal fluid away from the pulp can be caused by triggers such as cold and drying and movement towards the pulp can be caused by heat. Research has shown that triggers causing dentinal fluid to move away from the pulp elicit more of a painful response.
The odontoblastic transduction theory was suggested by Rapp et al. and puts forward the idea that odontoblasts act as receptor cells, and conduct impulses via synaptic junctions to the end of the nerves and therefore cause the feeling of pain. However, there is not much evidence to support this theory.
The neural theory proposes that thermal or mechanical stimuli can directly influence nerve endings within the dentinal tubules via direct communication with the nerve endings of the pulp.
There are two common ways in which dentine can be exposed; gingival recession and tooth wear. The main cause of DH is gingival recession (receding gums) with…
Dentine hypersensitivity (DH) is a common yet often overlooked oral condition that causes pain and discomfort, negatively impacting quality of life. The prevalence of DH in the Middle East and Africa (MEA) region is relatively higher than in European countries, highlighting the need for interventions to reduce the disease burden associated with DH. A systematic approach and a thorough understanding of the condition are required for proper diagnosis and management. However, the lack of specific treatment guidelines in the MEA region poses a challenge for clinicians in identifying and managing DH. To address this, an advisory board panel of 12 dental experts from 8 MEA countries developed these consensus recommendations for DH diagnosis and management. This paper presents an overview of the clinical presentation, diagnostic challenges, and management strategies specific to the MEA region. It provides evidence-based recommendations and a simplified algorithm to guide clinicians in diagnosing and managing DH effectively. The panel underscored the importance of early diagnosis, preventive education, behavioral modification, and personalized treatment interventions, including self-care home-based therapies, for optimal DH management. Additionally, the panel emphasized the need for heightened public awareness and the integration of DH education into dental professional curricula.
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