Composite plastering technique (CPT) for anterior and posterior restorations

Composite plastering technique (CPT) is a novel restoration improvement technique for eliminating and re-contouring the marginal defects. Restoration-related interproximal contour deficiencies such as dark triangles beneath the contact point following direct class II restorations, the gaps at the interproximal cavity step following indirect cementations, and the gaps at the interproximal wall following class III restoration layering procedures can be corrected using the CPT. The technique may also be used as a layering step during the free-hand layering in diastema closure restorations. Contour deficiencies on interproximal surfaces which lead to the renewal of restoration and periodontal damages can be prevented by additional direct composite build-up using the CPT. The technique can be performed either immediately after the restoration directly or long after by using the composite repair protocol. It focuses on filling and re-contouring the surface of the deficiency by using a mylar strip actively under rubberdam isolation. Composite is loaded between the strip and the tooth surface and the strip is pulled slightly in palato-buccal or the opposite direction depending on the location of the defect, to fill it by plastering the composite. It may contribute the longevity of the restoration by improving the emergence profile and correcting the interproximal contour. Re-contouring of the interproximal surface defects by CPT is a useful approach to improve the esthetics as well as the function of anterior and posterior direct and indirect restorations which may also prolong the longevity

Talon cusp on a maxillary central incisor: a case report with clinical and radiological findings, and management

Dens evaginatus (DE) is a developmental dental anomaly and is defined as a tubercle-like structure that may contain pulp tissue as well as enamel and dentin. Although it is usually associated with premolars, it is also seen in incisors (talon cusp). This anomaly, which is more common among Asians, may affect both genders and may be observed unilaterally or bilaterally. Clinically, it may cause complications such as caries, malocclusion, occlusal trauma, and pulp necrosis. Radiologically, the V-shaped radiopaque structure superimposed over the affected crown may mimic the appearance of a mesiodens, compound odontoma, or supernumerary tooth. Clinical and radiological examination of a 16-year-old male patient who admitted to our clinic with aesthetic concerns and treatment of decayed teeth was performed. In the intra-oral examination, a conical accessory cusp was noted on the lingual surface of the left maxillary central incisor. A typical V-shaped radiopaque structure superimposed on the affected crown was observed on the periapical radiograph taken from the relevant area. Cone beam computed tomography (CBCT) imaging was used to evaluate the restorative treatment options by examining the pulp extension in the relevant tubercle. The patient was referred to the Department of Restorative Dentistry for restoration of the retentive areas and caries. DE, which is a rare anomaly, should be evaluated together with clinical and radiological findings. Consideration of genetic transmission is quite important for early diagnosis. CBCT imaging will provide significant advantage to the clinician in preventive and minimally invasive applications.Dens evaginatus (DE) gelişimsel bir dental anomali olup, mine ve dentin dokusunun yanı sıra pulpa dokusunu da içerebilen tüberkül benzeri yapı olarak tanımlanmaktadır. Genellikle premolar dişlerle ilişkilendirilmekle birlikte, kesici dişlerde de görülmektedir (talon tüberkülü). Asya kökenlilerde daha sık rastlanan bu anomali, her iki cinsiyeti de etkileyebilmekte ve unilateral veya bilateral olarak izlenebilmektedir. Klinik olarak; çürük, maloklüzyon, oklüzal travma ve pulpa nekrozu gibi komplikasyonlara sebep olabilir. Radyolojik olarak, etkilenen kuron üzerine süperpoze olan “V” şeklindeki radyo-opak yapı mesiodens, kompound odontoma veya sürnumerer diş görüntüsünü taklit edebilir. Estetik kaygılar ve çürük dişlerinin tedavisi için kliniğimize başvuran 16 yaşındaki erkek hastanın klinik ve radyolojik muayenesi gerçekleştirilmiştir. İntra-oral muayenede, sol maksiller santral kesici dişin lingual yüzeyinde konik şekilli aksesuar tüberkül saptanmıştır. İlgili bölgeden alınan periapikal radyografide, etkilenen kuron üzerine süperpoze olmuş tipik “V” şekilli radyo-opak yapı izlenmiştir. İlgili tüberküldeki pulpa uzantısının incelenmesi ve restoratif tedavilerin bu doğrultuda şekillendirilmesi için konik ışınlı bilgisayarlı tomografi (KIBT) görüntülemeye başvurulmuştur. Hasta, retantif alanların ve çürüklerin restorasyonu için Restoratif Diş Tedavisi Anabilim Dalı’na sevk edilmiştir. Nadir rastlanan bir anomali olan DE, klinik ve radyolojik bulgularla birlikte değerlendirilmelidir. Genetik aktarımın göz önünde bulundurulması erken tanı açısından oldukça önemlidir. Koruyucu/önleyici ve minimal invaziv uygulamaların KIBT görüntüleme ile desteklenmesi klinisyene önemli avantaj sağlayacaktı

Cracked Tooth Syndrome and Strategies for Restoring

PURPOSE OF REVIEW: The restorative management of cracked tooth syndrome (CTS) is very complex and depends on the prerestorative diagnosis and decisions. This review discusses the strategies for restoring teeth with CTS and suggests a related clinical decision tree. RECENT FINDINGS: CTS is the incomplete fracture of the natural tooth crown. Preparation type and direct/indirect restorative protocol choices are the important factors effecting the prognosis of the tooth while multi-factorial etiology, complexity in diagnosis, and subjective decisions about the preparation make the clinical management very difficult. Therefore, the clinical management of CTS should be carried out by the guidance of an informative decision tree. This decision tree should focus on (1) the rational retention of tooth structure, (2) the preparation optimization, and (3) the restorative implications and choices. SUMMARY: The restorative management of CTS is a complex issue which should be carried out systematically. The guidance of an informative, universal decision tree might be useful in daily clinical practice

Assessment of micro-hardness, degree of conversion, and flexural strength for single-shade universal resin composites

© 2022 by the authors.Single-shade universal resin composites (SsURC) are preferred in clinical practice to reduce time for shade selection and obtain good esthetic results. In this study, the static mechanical properties of seven new SsURCs were investigated, their spectral analyzes were performed and scanning electron microscopy (SEM) evaluations were presented. Charisma Diamond One/DO, Admira Fusion x-tra/AFX, Omnichroma/OC, OptiShade/OS, Essentia Universal/EU, Zenchroma/ZC, Vittra APS Unique/VU were used in a three-point bending test to determine flexural strength (FS) and elastic modulus (EM); Vickers micro-hardness (VHN) and hardness-ratio (HR) were performed with a micro-hardness tester from top/bottom after 24-h/15-days of storage in distilled water at 37 °C (±1 °C). The degree of conversion (DC) was assessed by using Fourier transform infrared spectroscopy (FTIR). The structure of the resin matrix and filler content were assessed by SEM. Data were analyzed using IBM SPSS V23 and the R program and the significance level was taken as p < 0.05. The main effect of the tested SsURCs was found to be statistically significant on FS, EM, VHN, and DC values (p < 0.001). Bis-GMA free SsURCs (AFX, DO, VU) showed better DC and HR except for OC. All seven tested SsURCs conform to the requirements of ISO standards for dental resin composites for all tested categories

Assessment of Micro-Hardness, Degree of Conversion, and Flexural Strength for Single-Shade Universal Resin Composites

Single-shade universal resin composites (SsURC) are preferred in clinical practice to reduce time for shade selection and obtain good esthetic results. In this study, the static mechanical properties of seven new SsURCs were investigated, their spectral analyzes were performed and scanning electron microscopy (SEM) evaluations were presented. Charisma Diamond One/DO, Admira Fusion x-tra/AFX, Omnichroma/OC, OptiShade/OS, Essentia Universal/EU, Zenchroma/ZC, Vittra APS Unique/VU were used in a three-point bending test to determine flexural strength (FS) and elastic modulus (EM); Vickers micro-hardness (VHN) and hardness-ratio (HR) were performed with a micro-hardness tester from top/bottom after 24-h/15-days of storage in distilled water at 37 &deg;C (&plusmn;1 &deg;C). The degree of conversion (DC) was assessed by using Fourier transform infrared spectroscopy (FTIR). The structure of the resin matrix and filler content were assessed by SEM. Data were analyzed using IBM SPSS V23 and the R program and the significance level was taken as p &lt; 0.05. The main effect of the tested SsURCs was found to be statistically significant on FS, EM, VHN, and DC values (p &lt; 0.001). Bis-GMA free SsURCs (AFX, DO, VU) showed better DC and HR except for OC. All seven tested SsURCs conform to the requirements of ISO standards for dental resin composites for all tested categories