Introduction: This study evaluated the responses of baboon dental pulps after the application of 3 pulp capping materials.
Methods: Thirty premolar teeth in four 3-year old baboons were randomly assigned to 1 of 3 pulp capping materials. A split-mouth design was used, and intra-animal side randomization was applied to the 3 experimental groups (calcium hydroxide, ProRoot white mineral trioxide aggregate, white Portland cement) and the control group (no pulp capping material). Animals were divided into 4 groups (n = 8 teeth/pulp capping material). The animals were killed after 4 months. Histomorphometric analysis and micro-computed tomography were performed on the retrieved specimens.
Results: Pulps capped with ProRoot white mineral trioxide aggregate and white Portland cement exhibited thicker reparative hard tissue deposition over the exposed pulps when compared with those that were capped with calcium hydroxide (P < .007), but they were not significantly different from one another (P > .05). No tubular reparative dentin could be identified from any of the specimens. Dentin tunnel defects were evident in all groups. There was no reparative hard tissue formation in the negative control group.
Conclusions: Reparative hard tissue formation in pulps capped with Portland cement-based materials differs only in quantity (thickness) but not in quality from those that were formed after direct pulp capping with calcium hydroxide. It appears that other growth factors and up-regulation of transcription factors are required apart from those sequestered via the application of alkaline pulp capping materials for dental pulp stem cells to commit to the odontoblast lineage.
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http://dx.doi.org/10.1016/j.joen.2010.11.001 | DOI Listing |
J Indian Soc Pedod Prev Dent
October 2024
Department of Paediatric and Preventive Dentistry, T.P.C.T's Terna Dental College, Navi Mumbai, Maharashtra, India.
Objectives: Comparative evaluation of indirect pulp therapy (IPT) with silver diamine fluoride (SDF), Type VII glass ionomer cement (GIC), and calcium hydroxide (Ca(OH)2) in young permanent molars.
Materials And Methods: This was randomized controlled trial, in which 45 children with 60 young permanent first molars were allocated as; Group A: IPT with SDF, Group B: Type VII GIC, and Group C: Ca(OH)2. Clinical and radiographic evaluation and comparison was done at baseline, 3, 6, 12 months.
Br Dent J
January 2025
Key Laboratory of Shaanxi Province for Craniofacial Precision Medical Research, College of Stomatology, Xi´an Jiaotong University, Xi´an, P.R. China; Department of Paediatric Dentistry, Affiliated Stomatology Hospital of Xi´an Jiaotong University, Xi´an, P.R. China.
Background Indirect pulp capping (IDPC) is a preferred treatment for pulp preservation in primary teeth. However, the survival rate of IDPC in primary teeth and impact factors is still equivocal.Aims To evaluate the survival rate of IDPC in primary teeth with a deep carious lesion approximating the pulp but without irreversible pulpitis or periapical disease.
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January 2025
Oral Radiology, Faculty of Dentistry, Cairo University, Giza, Egypt.
Aim: Clinical and radiographic evaluation of SDF versus MTA as indirect pulp capping agents in deeply carious first permanent molars.
Methodology: This study was conducted on (30) first permanent molars indicated for indirect pulp capping (IPC) randomly allocated to either SDF or MTA groups (n = 15). The molars were finally restored with glass hybrid glass ionomer restoration.
Int J Clin Pediatr Dent
November 2024
Department of Pediatric and Preventive Dentistry, Shree Guru Gobind Singh Tricentenary Dental College, Hospital and Research Institute, Gurugram, Haryana, India.
Aim: The present case-control study was planned to assess the comparative efficacy of resin-modified calcium silicate, resin-modified glass ionomer, and Dycal as pulp capping agents in indirect pulp therapy for deeply carious young permanent molars.
Materials And Methods: Thirty deeply carious young posterior teeth were treated by indirect pulp therapy. During the treatment, the cavity floor was lined with TheraCal or resin-modified glass ionomer cement (RMGIC) in the study group and with Dycal (control group) followed by GC IX and composite restoration.
Adv Mater
January 2025
Department of Chemistry, University College London, London, WC1E 7JE, UK.
Long-standing challenges including notorious side reactions at the Zn anode, low Zn anode utilization, and rapid cathode degradation at low current densities hinder the advancement of aqueous zinc-ion batteries (AZIBs). Inspired by the critical role of capping agents in nanomaterials synthesis and bulk crystal growth, a series of capping agents are employed to demonstrate their applicability in AZIBs. Here, it is shown that the preferential adsorption of capping agents on different Zn crystal planes, coordination between capping agents and Zn ions, and interactions with metal oxide cathodes enable preferred Zn (002) deposition, water-deficient Zn ion solvation structure, and a dynamic cathode-electrolyte interface.
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