Many different designs exist for RME, including tissue-borne, tooth-borne, and bone borne, depending on the age, the cooperation of the patient, and indication (10-13).
Tooth-borne acrylic-bonded RME appliances are the most commonly used expansion devices in the orthodontics practice for narrow upper arch corrections owing to their easy and inexpensive laboratory steps, simple, and non-invasive bonding procedure, and successful patient compliance.
Three-dimensional prospective evaluation of tooth-borne and bone-borne surgically assisted rapid maxillary expansion.
Changes after surgically-assisted maxillary expansion (sarme) to the dentoalveolar, palatal and nasal structures by using tooth-borne distraction devices.
The CPGs are presented in Table III for tooth-borne restorations (15-30) and Table IV for implant-borne restorations.
The potential benefits for these guidelines include: 1) improved oral health and longevity of natural teeth, tooth-borne, and implant-borne restorations and 2) improved oral health related quality of life.
Comparison between both groups (Table 3) evidenced statistically significant differences for all variables, except for the IArD, which increased 6.8 mm using the tooth-borne expander, compared to 5.6 mm using the tooth-tissue-borne expander.
A proportionally greater increase of the interapical distance (IApD) was observed in the tooth-borne expander group (0.7:1.0) compared to the tooth-tissue-borne expander group (0.4:1.0) (Table 4, Figure 3).
The Bionator is a tooth-borne
appliance developed in Germany by Wilhelm Balter in the early 1950s.