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Treatment Planning
Published in M S Duggal, M E J Curzon, S A Fayle, K J Toumba, A J Robertson, Restorative Techniques in Paediatric Dentistry, 2021
M S Duggal, M E J Curzon, S A Fayle, K J Toumba, A J Robertson
Existing restorations should be examined with care for recurrent caries and for the type and integrity of the restorations. In particular, glass ionomer cements and composite resin restorations should be examined most critically, since their success rates in primary teeth are poor and they often need replacement. An example of a poor quality glass ionomer restoration in a primary molar that has failed is shown in Figure 1.5. Too often, an attempt is made to restore a large cavity in a primary tooth with a material that will not hold for very long. Leakage around the margins or breakdown of the margins leads to failure of the restoration. In many cases the cavity was originally quite deep, and irreversible pulpal necrosis occurs when the tooth dies and an abscess ensues. This is the situation illustrated in Figure 1.5.
Dentin-Pulp Complex Regeneration
Published in Vincenzo Guarino, Marco Antonio Alvarez-Pérez, Current Advances in Oral and Craniofacial Tissue Engineering, 2020
Amaury Pozos-Guillén, Héctor Flores
Publications related to regenerative endodontics have increased significantly in the last decade. In an electronic search in PubMed, with appropriate MeSh terms including ‘regenerative endodontics’, 259 studies of potential relevance were identified (18 April 2019). The first case reports of ‘revascularization’ were reported in 2001 and 2004. Successful clinical outcomes in teeth with pulp necrosis were reported without the conventional obturation of the root canal with gutta-percha or bioceramic materials. These studies defined the direction of the investigation in this topic. From these statistics, it becomes immediately clear that these two conditions remain a significant public health problem and require better strategies for disease prevention and clinical management (Iwaya et al. 2001; Banchs and Trope 2004).
Discoloration of Teeth
Published in Linda Greenwall, Tooth Whitening Techniques, 2017
Pulp necrosis can be the result of bacterial, mechanical, or chemical irritation to the pulp. Substances can enter the dentinal tubules and cause the teeth to discolor. These teeth will require endodontic treatment before whitening, the latter using the intracoronal method (see Chapter 8) or the outside-inside technique (see Chapter 15). See Table 1.4.
Analysis of oral microbiota in non-vital teeth and clinically intact external surface from patients with severe periodontitis using Nanopore sequencing: a case study
Published in Journal of Oral Microbiology, 2023
Alessio Buonavoglia, Francesco Pellegrini, Gianvito Lanave, Georgia Diakoudi, Maria Stella Lucente, Fausto Zamparini, Michele Camero, Maria Giovanna Gandolfi, Vito Martella, Carlo Prati
In our study, all the teeth but the control case presented bacteria on the root surface and in the root canal system, demonstrating the possibility of bacteria to spread directly from the periodontal pocket to the root canal system, despite the apical foramen was not reached by periodontal lesion. It is well known that periodontal diseases may determine the exposure of other anatomical communications, over the apical segment, between periodontal tissues and the root canal system, with possible invasion of the root canal system from periodontal bacteria and/or their toxic metabolic products [18]. ‘Retrograde’ pulpitis is an inflammatory pulpal condition caused by response to bacterial invasion and toxic products entering through anatomical communications that became exposed to the oral fluids. Total pulp necrosis is determined when the blood supply to all root canals is interrupted by periodontal disease that involves apical root segment determining a vascular damage and subsequent hypoxia [1].
Nanofibers as drug-delivery systems for infection control in dentistry
Published in Expert Opinion on Drug Delivery, 2020
Maurício G. C. Sousa, Mariana R. Maximiano, Rosiane A. Costa, Taia M. B. Rezende, Octávio L. Franco
As previously mentioned, a large variety of microorganisms are responsible for the infection of the dental pulp tissue and consequently contribute to pulp necrosis [76]. Some studies have sought to understand the differences between the microbiota present in pulp infections caused by dental caries and dental trauma [77]. The most often found species in cases of dental trauma, so far, were Actinomyces naeslundii, Porphyromonas endodontalis, Parvimonas micra, Fusobacterium nucleatum, Porhiromonas gingivalis, Tannerella forshytia, Filifactor alocis and Treponema denticola [64]. Other species such as Enterococcus faecalis have also been studied, mainly as a base microorganism for understanding how antimicrobial pastes would act on the root canal system, since this microorganism is related to cases of persistent infection and endodontic failure [78].
Profile of intrusive luxation and healing complications in deciduous and permanent teeth – a retrospective study
Published in Acta Odontologica Scandinavica, 2018
Thais Rodrigues Campos Soares, Luciana Pereira Silva, Sabrina Loren de Almeida Salazar, Ronir Raggio Luiz, Patrícia de Andrade Risso, Lucianne Cople Maia
Several factors are associated with the presence of HCs following intrusion, including the level of intrusion, the presence of associated coronal fractures and the type of tooth involved [10,11,26]. The results demonstrated that mobility was the most common HC in intruded deciduous teeth. This condition must be related to the fact that in the deciduous teeth partial intrusion was the most prevalent, which could facilitate mobility. Additional factors that could explain the association between tooth and injuries to support tissues in young children are bone resilience and root length [7,22]. In permanent teeth, the literature has shown that pulp necrosis is one of the most frequently diagnosed complications following traumatic intrusion [1,16,25]. Results demonstrated a higher prevalence of inflammatory root resorption in permanent teeth. These results may be related to the fact that permanent teeth have suffered an increased frequency of complete intrusions, considered of greater severity, and with the stage of root development [20,26].