
New contributions of the study
- This is a research project following the new trend of microscope
application in the accurate diagnosis and examination of fissures
before and during treatment, the discovery of calcified particles and
calcification chamber, and management of complications when
encountered in the treatment of upper first molar.
- The thesis specifically evaluates the efficiency of using a
microscope to detect the orifice of the root canal, of which the most
effective is to detect the MB2 is much higher than naked eye.
- The results of the study are monitored up to 24 months after
treatment, which is long enough to generalize the results, making
recommendations in the application of microscopes in endodontic
treatment.
Layout of the thesis
The thesis has 143 pages, including sections: problem statement (2
pages), introduction (44 pages), subjects and research methods (18
pages), results (47 pages), discussion (29 pages), conclusion (2 pages),
Suggestion (1 pages), The thesis has 49 tables, 47 pictures, 8 charts, 1
diagram. 131 references including Vietnamese and English documents.
CHAPTER 1: INTRODUCTION
1.1. Anatomy of the upper first molar root canal system
The upper first molar is the earliest permanent tooth, so it is the
first to decay. Upper first molar has three root: two buccal root (MB
and DB) and one platal root. Each root corresponds to 1 root canal,
sometimes 2 canals, usually found in the proximal canal.
1.1.1. Outer anatomy
Viewed from the occlusal surface: The contour is usually diamond
shape. Three large cusps form a typical pattern for maxillary molar
teeth, which are linked together into a triangle. These are important
anatomical landmarks applied when opening pulp for endodontic
treatment of the upper fist molar teeth.
1.1.2. Inner anatomy
The inner form includes the pulp chamber and the canal system.
1.1.2.1. Pulp chamber
On the near and far view: the pulp chamber has two horns, the horn is near
the outside and the horn is far away. The two canals are quite narrow.