Herve Tassery

Assistance Publique Hôpitaux de Marseille | APHM · preventive department

The use of materials for computer-aided design/computer-aided manufacturing (CAD/CAM) has been rapidly increasing in daily practice. However, one of the main issues regarding modern CAD/CAM materials is their aging in the oral environment, which may lead to significant changes in their overall properties. The aim of this study was to compare the fl...

Background: This paper aimed to study the association of serum Vitamin D level and Body Mass Index (BMI) as representatives of malnutrition at micro and macro levels, respectively, on dental caries. Method and participants: A total of 333 randomly selected children aged 6-12 years in Sulaimani, Kurdistan, Iraq were examined for three variables o...

The antibacterial activity, and the effect of the application of additional topical fluoride on the bacterial activity, biofilm formation, and surface roughness of new-generation hybrid/fluoridereleasing materials were investigated. Two hundred and forty specimens were prepared in split Teflon molds (8 2 mm) from a resin composite (as negative cont...

Aim: To provide recommendations for dental clinicians for the management of dental caries in older adults with special emphasis on root caries lesions. Methods: A consensus workshop followed by a Delphi consensus process were conducted with an expert panel nominated by ORCA, EFCD, and DGZ boards. Based on a systematic review of the literature, as...

Minimal intervention dentistry is now accepted as the contemporary approach for caries management. The development of adjunctive technologies to assist early lesion detection has led to widespread marketing of various devices over the past two decades. A thorough understanding of the clinical relevance and limitations of such devices is required to...

Objectives To define an expert Delphi consensus on when to intervene in the caries process and existing carious lesions. Methods Non-systematic literature synthesis, expert Delphi consensus process and expert panel conference. Results Lesion activity, cavitation and cleansability determine intervention thresholds. Inactive lesions do not require tr...

Objectives: To provide consensus recommendations on how to intervene in the caries process in adults, specifically proximal and secondary carious lesions. Methods: Based on two systematic reviews, a consensus conference followed by an e-Delphi consensus process were held with EFCD/ORCA/DGZ delegates. Results: Managing an individual’s caries risk us...

This paper provides recommendations for dentists for the treatment of dental caries in children, with an emphasis on early childhood caries (ECC), primary teeth, and occlusal surfaces in permanent teeth. A consensus workshop followed by an e-Delphi consensus process was conducted with an expert panel nominated by the European Organization for Carie...

The development of new diagnostic technologies based on the light scattering and autofluorescence properties of dental tissues is required to improve the diagnostic ability of initial caries lesions earlier than previously done and promoting the potential of treatment without surgical intervention. The aim of this study is to correlate fluorescence...

Background: Teledentistry consultations are an effective way to increase access to care. Whether it be for a screening, referral or even an adapted treatment plan for a certain number of patients whose access to care is complicated, demonstrating the reliability of remote consultations is essential in allowing the technique to become generalised....

Objectives To define an expert Delphi consensus on when to intervene in the caries process and on existing carious lesions using non- or micro-invasive, invasive/restorative or mixed interventions. Methods Non-systematic literature synthesis, expert Delphi consensus process and expert panel conference. Results Carious lesion activity, cavitation...

Aim: Modern clinical caries management involves early stage caries diagnosis and should fit with dental health policy. The objective of this study was to achieve early caries detection in enamel and dentine with a laser-based system (DIAGNOdent™ pen) first and secondary with a new fluorescence intra-oral camera (Soprolife®). A visual inspection wi...

The present study compared two pH-cycling models designed to induce subsurface lesions (SLs) with a less demineralized surface layer on teeth, with the aim of developing new technologies for assessment of such lesions by examining the performance of confocal Raman microscopy for detection of white spot lesions (WSLs). Twelve sound premolars were ex...

Objectives: This randomized controlled in vitro 4-arm trial study aimed to study the remineralization potential of Recaldent™ and assess the effects of prophylaxis cleaning and MI Varnish® on enhancing this remineralization potential. Material and Methods: Sixty human teeth were randomly assigned into equal samples (A/B). Sample A was prophylactic...

Objective: In dentistry, dentists perform many treatments with a few visually magnified information. About deep area of root canals, it commonly relies on exploration carried out with the fingers of the dentist, because the root canal entrance is very small to be observed. In clinical practice, the intraoral camera and endoscopic systems are separa...

Objective: In dentistry, dentists perform many treatments with a few visually magnified information. About deep area of root canals, it commonly relies on exploration carried out with the fingers of the dentist, because the root canal entrance is very small to be observed. In clinical practice, the intraoral camera and endoscopic systems are separ...

Treatment of tooth wear has increased over the last two decades. However, the treatments involved have not been satisfactory to most patients, nor have they achieved the expected goal on some worn teeth. New approaches have emerged to reconstruct full arches in a minimally invasive way that take advantage of developments in the field of adhesive de...

Bousquet J, Bourret R, Camuzat T, Augé P, Bringer J, Noguès M, Jonquet O, de la Coussaye JE, Ankri J, Cesari M, Guérin O, Vellas B, Blain H, Arnavielhe S, Avignon A, Combe B, Canovas G, Daien C, Dray G, Dupeyron A, Jeandel C, Laffont I, Laune D, Marion C, Pastor E, Pélissier JY, Galan B, Reynes J, Reuzeau JC, Bedbrook A, Granier S, Adnet PA, Amouya...

White lesions represent an early phase of caries formation. 20 human sound premolars were subjected to pH cycling procedure to induce subsurface lesions (SLs) in vitro. In addition, 2 teeth with naturally developed white spot lesions (WSLs) were used as references. All specimens characterized by confocal Raman microscopy being used for the first ti...

Dentin carious lesion is a dynamic process that involves demineralization and collagen denaturation. Collagen type I is the major protein in dentin and it has been investigated based on its optical properties. Multiphoton microscopy (MPM) is a nonlinear imaging technique that reveals the caries process using the collagen two-photon excitation fluor...

Treatment of tooth wear has increased over the last two decades. However, the treatments involved have not been satisfactory to most patients, nor have they achieved the expected goal on some worn teeth. New approaches have emerged to reconstruct full arches in a minimally invasive way that take advantage of developments in the field of adhesive de...

OBJECTIVES Dental caries is a disease of dental tissue that affects more than 90% of adult subjects. Its management has been the subject of numerous clinical and laboratory investigations, and the approaches suggested in the literature are now clear enough for a correct diagnosis of injuries and the execution of treatments that are always adequate...

The separation zone between enamel and dentin [dentin-enamel junction (DEJ)] with different properties in biomechanical composition has an important role in preventing crack propagation from enamel to dentin. The understanding of the chemical structure (inorganic and organic components), physical properties, and chemical composition of the human DE...

In dentistry, 3D intra-oral scanners are gaining increasing popularity essentially for the production of dental prostheses. However, there is no normalized procedure to evaluate their basic performance and enable comparisons among intra-oral scanners. The noise value highlights the trueness of a 3D intra-oral scanner and its capacity to plan prosth...

Aim: To assess the validity and reliability of a recent light fluorescence device, Soprolife(?) (Sopro-Acteon group) in detecting occlusal caries in children and adolescents and to compare its diagnostic performance with DIAGNOPen(?) (Kavo). Methods: A multi-centre study was carried out to validate Soprolife(?) in 103 children, aged from 5-15?ye...

The aim is to reduce risk factors that are identified from the risk assessment, which are aligned with the child’s specific age group and related treatment strategies. An individualized care plan can be created using these charts, which will help to develop the necessary interventions required

This book aims to define the etiological factors in dental caries and to guide the clinician towards methods of caries prevention that are evidence based. The coverage includes discussion of the active role of the biofilm and the oral environment and emphasizes the multifactorial etiology of dental caries. The opening chapters describe the early de...

The early detection and diagnosis of the carious lesion are a primary consideration of the minimal intervention dentistry (MID) concept. Detection is the identification of a demineralized lesion, while diagnosis is an iterative process using further information from the patient to identify the lesion as carious in nature. Traditionally, visual, tac...

Proper treatment of dental caries demands detection of carious lesions at an early stage and a minimal invasive cavity preparation to preserve the maximum tooth structure. Various devices use fluorescence for caries detection via recording the red fluorescence generated by dentin caries under illumination. The aim of this study was to evaluate the...

Multiphoton confocal microscopy and nonlinear spectroscopy are used to investigate the caries process in dentin. Although dentin is a major calcified tissue of the teeth, its organic phase comprises type I collagen fibers. Caries drive dentin demineralization and collagen denaturation. Multiphoton microscopy is a powerful imaging technique: the bio...

The Région Languedoc Roussillon is the umbrella organisation for an interconnected and integrated project on active and healthy ageing (AHA). It covers the 3 pillars of the European Innovation Partnership on Active and Healthy Ageing (EIP on AHA): (A) Prevention and health promotion, (B) Care and cure, (C) and (D) Active and independent living of e...

Groupe d’étude MACVIA-LR intégral :Jean Bousquet, Rodolphe Bourret , Thierry Camuzat , Philippe Augé , Philippe Domy, Jacques Bringer , Nicolas Best, Olivier Jonquet, Jean-Emmanuel de la Coussaye, Michel Noguès, Jean-Marie Robine, Antoine Avignon, Hubert Blain, Bernard Combe, Gérard Dray, Vincent Dufour, Mireille Fouletier, Nicolas Giraudeau, Didie...

Introduction: Patients often keep their cell phones on and nearby during root canal therapy. Cell phones release electromagnetic interference, which might disturb electronic working length measurements. The purpose of this ex vivo study was to determine the effect of a cell phone (Apple iPhone 5 [Apple, Cupertino, CA] or KP100 [LG, Seoul, Korea])...

The purpose of the present study was to assess the irrigant penetration and cleaning ability of a new irrigation system, the Clean Jet Endo® (Produits Dentaires SA, Switzerland) in comparison to conventional irrigation followed or not by sonic activation. Irrigant penetration was evaluated on resin blocks simulators by measuring the methylene blue...

The Region Languedoc-Roussillon is the umbrella organisation for an interconnected and integrated project on AHA covering the 3 pillars of the European Innovation Partnership on Active and Healthy Ageing. All sub-activities (A1 : electronic pharmaceutical file, A2: falls prevention initiative, A3: frailty, B3: chronic respiratory diseases, chronic...

approche médicale des lésions carieuses dentaires requiert une détection de ces lésions à un stade le plus précoce possible. La gestion du risque carieux et le développement de technologies pour détecter et quantifier ces caries précoces ainsi que l'activité carieuse seront des outils pour identifier des patients nécessitant une intervention préven...

The Région Languedoc-Roussillon is the umbrella organisation for an interconnected and integrated project on AHA covering the 3 pillars of the European Innovation Partnership on Active and Healthy Ageing. All sub-activities (A1: electronic pharmaceutical file, A2: falls prevention initiative, A3: frailty, B3: chronic respiratory diseases, chronic d...

The mechanical properties of the resin-based composites used in restorative dentistry are known to be influenced by the presence of water. The aim of this study was to characterize in vitro the parameters of water uptake of a silorane-based composite (SBC). Polymerized discs of one SBC (Filtek Silorane ®), two different resin-based composites (RBCs...

De nos jours, les personnes en perte d’autonomie, notamment institutionnalisées, ont de grandes difficultés pour consulter un chirurgien-dentiste alors qu’elles en ont un grand besoin. Pour améliorer la qualité de prise en charge des personnes en perte d’autonomie institutionnalisées, l’ASIP santé a mis comme une des priorités du développement de l...

The aim of this study was to evaluate the porphyrin involvement in the red fluorescence observed in dental caries with Soprolife (R) light-induced fluorescence camera in treatments mode (SOPRO, ACTEON Group, La Ciotat, France) and Vistacam (R) camera (DURR DENTAL AG, Bietigheim-Bissingen, Germany). The International Caries Detection and Assessment...

Proper treatment of dental caries demands detection of carious lesions at an early stage and a minimal invasive cavity preparation to preserve the maximum tooth structure. Various devices use fluorescence for caries detection via recording the red fluorescence generated by dentin caries under illumination. The aim of this study was to evaluate the...

In the literature, the enamelin gene ENAM has been repeatedly designated as a possible candidate for caries susceptibility. Here, we checked whether ENAM variants could increase caries susceptibility. To this aim, we sequenced coding exons and exon-intron boundaries of ENAM in 250 children with a severe caries phenotype and in 149 caries-free patie...

The structure and chemical composition of the human dentin-enamel junction (DEJ) was studied using confocal Raman microscopy - a chemical imaging technique. Slices of non-fixed, sound teeth were prepared with an Isomet diamond saw and scanned with Witec Alpha300R system. The combination of different characteristics peaks of phosphate, carbonate and...

Currently, people with decreasing independence, particularly those in institutions, have difficulties consulting a dentist despite a real need for dental care. To improve the quality of care of such patients, ASIP santé determined the care of residents in medico-social establishments as a priority in the development of telemedicine. Patients and m...

Objective: The aim of this in vivo study was to compare the sensitivity and specificity of a fluorescence camera (Soprolife®) versus visual inspection with loupe and versus a laser fluorescence device (DiagnoPen®) for early occlusal caries diagnosis. Method: After a signed informs consent, voluntary participants were randomly recruited in each re...

Objective: The aim of this in vivo study was to compare the sensitivity and specificity of a fluorescence camera (Soprolife®) versus visual inspection with loupe and versus a laser fluorescence device (DiagnoPen®) for early occlusal caries diagnosis. Method: voluntary participants were randomly recruited in Montpellier preventive department after...

AIM: To assess the influence of concentration, temperature and surfactant addition to a sodium hypochlorite solution on its dynamic viscosity and to calculate the corresponding Reynolds number to determine the corresponding flow regimen. METHODOLOGY: The dynamic viscosity of the irrigant was assessed using a rotational viscometer. Sodium hypochlori...

L a gestion thérapeutique des lésions carieuses proximales pos-térieures se heurte à plusieurs dif-ficultés tant diagnostiques que techniques. En effet, bien souvent, l'image radiologique sous-évalue l'extension de la lésion et la restauration d'un contact proximal efficient constitue une réelle difficulté technique. La multiplicité des matériaux c...

Preservation of natural tooth structure requires early detection of the carious lesion and is associated with comprehensive patient dental care. Processes aiming to detect carious lesions in the initial stage with optimum efficiency employ a variety of technologies such as magnifying loupes, transillumination, light and laser fluorescence (QLF(®) a...

Multiphoton microscopy has been used to reveal structural details of dentine and enamel at the dentin-enamel junction (DEJ) based on their 2-photon excited fluorescence (2PEF) emission and second harmonic generation (SHG). In dentine tubule 2PEF intensity varies due to protein content variation. Intertubular dentin produces both SHG and 2PEF signal...

Genetic approaches have shown that several genes could modify caries susceptibility; AmelogeninX (AMELX) has been repeatedly designated. Here, we hypothesized that AMELX mutations resulting in discrete changes of enamel microstructure may be found in children with a severe caries phenotype. In parallel, possible AMELX mutations that could explain r...

Introduction: The purposes of the present study were to (1) assess the effect of the addition of benzalkonium chloride to sodium hypochlorite on its wetting properties, contact angle, and surface energy; (2) determine the critical micellar concentration of benzalkonium chloride in sodium hypochlorite; and (3) investigate the influence of addition...

In clinical situations carious dentine tissues can be discriminated by most caries fluorescence detection tools, including a new fluorescence intra-oral camera. The objectives of this study were: (i) to analyze the Raman spectra of sound, carious, and demineralized dentine, (ii) to compare this spectral analysis with the fluorescence variation obse...

The goals of this trial were, first, to produce a Raman mapping of decay and sound dentin samples, through accurate analysis of the Raman band spectra variations of mineral and organic components. The second goal was to confirm the correlation between the Raman signal and the signal of a fluorescent camera, by assaying the concentration of pentosid...

Objectives Our aim was to determine the origin of the red fluorescence of carious dentine observed with the Soprolife® camera. Methods We conducted in vitro studies to evaluate the origin of the red fluorescence using acids and matrix metalloproteinase (MMP) to mimic caries and methylglycoxal (MGO) to evaluate the effect of glycation reactions on t...

This study compared the in vitro marginal integrity of open-sandwich restorations based on aged calcium silicate cement versus resin-modified glass ionomer cement. Class II cavities were prepared on 30 extracted human third molars. These teeth were randomly assigned to two groups (n = 10) to compare a new hydraulic calcium silicate cement designed...

A fluorescence based method for dental caries detection was recently developed. Objectives: The aim of this study was to investigate correlations between variation of dental hard tissues fluorescence and structural changes during dentin demineralization. Methods: Tooth longitudinal slices with a thickness up to 0.5mm were prepared from freshly extr...

The risks of iatrogenic actions when we apply therapies to the tooth itself, or to collateral teeth, are potentially high when combined with low sensitivity and specificity of our diagnosis tools. There are therapeutic tools, both for the occlusal and proximal surfaces, in the form of infiltration products, specific inserts for cavity preparation,...

The risks of iatrogenic actions when we apply therapies to the tooth itself, or to collateral teeth, are potentially high when combined with low sensitivity and specificity of our diagnosis tools. There are therapeutic tools, both for the occlusal and proximal surfaces, in the form of infiltration products, specific inserts for cavity preparation,...