Publication: Effect of prerestorative short-term clear aligner therapy in restorative treatment planning
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Date
2023-05-01
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Abstract
Statement of problem. One of the major challenges in restorative dentistry is to provide optimal
esthetics in a minimally invasive way. The optimization of dental esthetics and function is directly
related to the position and alignment of the anterior teeth, but whether prerestorative clear aligner
therapy will enhance esthetics and minimize restorative needs is unclear.
Purpose. The purpose of this clinical study was to evaluate the effect of prerestorative maxillary and
mandibular second premolar to second premolar clear aligner therapy in minimizing the need for
restorative treatment.
Material and methods. Fifty adult patients treated with clear aligners (Invisalign Go; Align
Technology) were included in this study. Previously generated 3-dimensional orthodontic
simulations and clinical photographs in the ClinCheck/6.0 software program were used. Three
restorative treatment plans for each participant were generated for initial (no aligners), Express
(after using 7 aligners), and Lite Packages (after using 20 aligners) by 2 blinded restorative
dentistry instructors. The maxillary and mandibular teeth in the smile-line (to the second
premolars) were included. Assessment criteria were the estimated number of restorations,
restoration surfaces and preparations and incisal edge inclusion, and the need for gingival
leveling. The Friedman test and Cochran Q test were used for statistical analyses (a=.05).
Results. A strong positive correlation was found between the 2 instructors (P<.001). Estimated
number of restorations (10 [3 to 16]a
) decreased significantly for Express (6 [0 to 14]b
) and Lite
Packages (4 [0 to 8]c
) (P<.001). The estimated number of restoration surfaces (28.5 [9 to 48]a
)
decreased significantly for Express (15 [0 to 42]b
) and Lite Packages (9.5 [0 to 24]c
) (P<.001).
While the estimated number of teeth to be prepared for recontouring (7 [0 to 16]a
) was
significantly less for Express (3 [0 to 10]b
) and Lite Packages (0 [0 to 4]c
) (P<.001), the incisal
edge inclusion (10 [3 to 16]a
) was significantly less for Express (6 [0 to 14]b
) and Lite Packages (4
[0 to 8]c
) (P<.001). The need for gingival leveling (26 [52%]a
) decreased significantly for Express
(20 [40%]a
) and Lite Packages (7 [14%]b
) (P<.001).
Conclusions. Prerestorative short-term clear aligner therapy might conserve tooth structure and
reduce the number of restorations. The application of the Invisalign Lite Package was more
effective than the Invisalign Express Package for second premolar to second premolar
alignment. (J Prosthet Dent 2023;-:---)
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Keywords
Diş Hekimliği, Klinik Bilimler, Sağlık Bilimleri, Dentistry, Clinical Sciences, Health Sciences, Klinik Tıp (MED), Klinik Tıp, DİŞ HEKİMLİĞİ, ORAL CERRAHİ VE TIP, Clinical Medicine (MED), CLINICAL MEDICINE, DENTISTRY, ORAL SURGERY & MEDICINE, Periodontoloji, Ortodonti, Ağız Cerrahisi, Diş Hijyeni, Dişçilik Hizmetleri, Diş Hekimliği (çeşitli), Periodontics, Orthodontics, Oral Surgery, Dental Hygiene, Dental Assisting, Dentistry (miscellaneous), General Dentistry
Citation
Korkut B., Unal T., Murat N., Özcan M., "Effect of Pre-Restorative Short-Term Clear Aligner Therapy in Restorative Treatment Planning", JOURNAL OF PROSTHETIC DENTISTRY, cilt.1, sa.1, ss.1-9, 2023