Influence of the remaining tooth structure of endodontically treated maxillary central incisors on the type of restoration. A systematic literature review

Živilė Oleinikaitė1, Živilė Židonytė1, Danielė Oleinikaitė1

1 Faculty of Odontology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania


Background and aim: Endodontically treated central incisors with severe hard tissue loss can be restored using intracanal posts or without them. However, intracanal posts weaken teeth and they should be used only when remaining tooth structure cannot retain the restoration. Aim of  work –  to determine the influence of remaining hard tissues of endodontically treated central incisors on restoring defects using intracanal posts.

Materials and methods: Data was collected  using “PubMed“, “Wiley Online Library“ databases. As a protocol of this review was chosen –  PRISMA –  systematic reviews and meta analysis mothod – using “PICO“. Articles were included according to inclusion and rejection criteria that were selected in advance

Results: 10 researches were selected for the analysis of literature, in addition 8 articals were used for review. Publications were analized and there was found that posts in endodontically treated maxillary incisors should be used only when remaining structure is not enough to retain the restoration, posts can be used only when crown – root ratio is not less than 1:1 and only when there is a possibility to create ferrule.

Conclusions: Restoration technique of endodontically treated central incisors should be selected according to the size of defect. Restoration of the defects of first, second and third classes does not require intracanal posts and of the fourth and fifth classes are necessery, if posts are indicated, circumferential 2 mm height ferrule should be formed and minimum crown – root ratio should be minimum 1:1.