The strategies of private higher educational institutions during the Covid-19 pandemic. A review of literature.

This paper sought a qualitative/quantitative bibliometric approach, using the literature review, to present the main strategies with a bias toward sustainability, used by private Higher Education Institutions, in an attempt to neutralize the effects of the lockdown caused by the Covid-19 pandemic. To meet the reliability requirements of the source of the papers used, a search was made in the Web of Science and Scopus databases, where 47 papers were selected. As a result, there was a scattering of strategic actions in several works.

Healing of a tooth with an overinstrumented apex, extensive transportation and periapical lesion using a 5 mm calcium hydroxide apical plug: an 8-year follow-up report.

Besides the risk of filling material extrusion throughout the apex, a satisfactory apical seal can be difficult to achieve in canals with open apices or iatrogenic enlargements of the apical constriction. These situations pose a challenge to root canal filling. This paper describes the root canal filling of a maxillary right canine with an overinstrumented apex, complete loss of the apical stop, extensive canal transportation and apical periodontitis.

Apical third enlargement of the root canal and its relationship with the repair of periapical lesions.

Objective: The purpose of this study was to evaluate if the apical third enlargement of root canal is the determinant factor for the repair of periapical lesions in endodontic treatment.

Methods: Eighty upper and lower incisors, canines and premolars with periapical lesions were randomly divided in 2 groups and were treated by undergraduate students. Canals were instrumented with up to 3 files in group I (n = 40) and up to 4 files in group II (n = 40) 1 mm short of the apex and were filled with a calcium hydroxide dressing.

Apical limit of root canal filling and its relationship with success on endodontic treatment of a mandibular molar: 11-year follow-up.

Objective: This article discusses the relationship between apical limit of root canal filling and success on endodontic treatment of a mandibular molar.

Study Design: A mandibular right first molar with vital pulp was endodontically treated, and 3 years later periapical lesions on mesial and distal roots were detected. The canals were retreated and obturated to the same levels as in the previous treatment.