O r i g i n a l a r t i c l e
Dental Press J. Orthod. 118 v. 15, no. 1, p. 118-131, Jan./Feb. 2010
Aesthetics in Orthodontics: Six horizontal
Carlos Alexandre Câmara*
Introduction: Smile analysis is an important stage for the diagnosis, planning, treatment and
prognosis of any dental treatment involving aesthetic objectives. The evaluation of the in-
trinsic characteristics of the smile is a necessary procedure to achieve consistent form in
orthodontic treatments, which in turn makes it necessary to recognize the components and
factors that affect these characteristics. Objective: The objective of this work is to present
six horizontal smile lines and their importance in obtaining the desired results in orthodontic
treatments. Conclusion: The analysis of the six horizontal smile lines facilitates the under-
standing of the intrinsic characteristics that interfere in the aesthetics of the mouth. Moreover,
a harmonization of these lines gives each professional a higher possibility of success in their
treatments that include aesthetic objectives.
Keywords: Orthodontics. Aesthetics in Orthodontics. Dental aesthetics. Mouth aesthetics. Smile.
* Specialist in Orthodontics (FO-UERJ). Certified member of the Brazilian Board of Orthodontics and Facial Orthopedics (BBO).
Obtaining a beautiful smile is always the
main objective of any aesthetic dental treatment.
After all, it is the beauty of the smile that will
make the difference between an acceptable or
pleasing aesthetic result for any given treatment.
Nevertheless, in spite of its importance, the in-
trinsic characteristics of the smile are little dis-
cussed. Much is said of the clinical consequences
of dental procedures on the smile, but its in-
trinsic characteristics are not widely evaluated.
These characteristics can sometimes be altered
and sometimes not, as they are integral parts of
the individual. As such, the field of dentistry has
no reach over these characteristics, and can only
make evaluations of the