About Preortho

Preortho is a functional device for pre-orthodontic treatment. Orthodontic treatment consists of 2 stages for orthodontics depending on the age group. This device can be used for preventive treatment on mixed dentition, and it is available to improve occlusion, chewing, nasal breathing, open mouth habit, speech impediment, and swallowing. In order to complete the effectiveness of orthodontic treatment, we recommend following the proper procedure from phase I orthodontic treatment with Preortho to phase II orthodontic treatment with a fixed appliance like braces.

Dr. Otsuka

Tokyo Dental College
DDS, MD, Orthodontist
Otsuka Orthodontic Clinic
Inventor of Preortho
Preortho Chief Clinical Consultant

Dr. Otsuka Atsushi is 30 years experienced orthodontist, his sole purpose for this invention (Preortho) has led to numerous studied clinical cases for more than 10 years, in order to provide for patients to have maximum results without any severe pain. And Dr. Otsuka's textbook of Preortho (Quintessence) was the bestselling textbook of 2017 in Japan.

Preortho short lecture from Dr. Otsuka

Preortho 5 Benefical Features by Dr. Ojima Kenji

Material of Preortho: Thermoplastic Polyurethane(TPU)

Features of Preortho

Soft & Comfortable

Comfortability is Excellent
Durable Appliance

Pre-Formed Appliance

Hassle Free Appliance
Minimum Adjustment for Customized fit
Mouth Piece Type of Orthodontic Appliance

Effective for Myofunctional Therapy

Better Nasal Breathing vs Mouth Breathing
Improves Speech Impediment & Swallowing

Specification

Size

Type 1

Type 2

Type 3

Small size for patients with primary dentition,

Medium size for patients with mixed dentition,

Large size for patients with 7th teeth eruption.

Since the Preortho patients are mostly kids, it is suggested to let them wear the soft type for 6-10 months to get used to the device, then change to hard type.

Size Recommandation

Clinical cases

Preortho Flowchart

How to expand/adjust the Preortho

You may expand / adjust the Preortho using hot water if required.

Anti-open mouth tape

It is recommended to let the patient wear the Preortho around 1 hour during daytime, and wear the Preortho with anti open mouth tape during sleep for best results.