- Majesty of Tip-Edge and The Elusive Two-Ounce Force by Peter C. Kesling, D.D.S., Sc.D.
The continuous application of relatively light intermaxillary traction in concert with appropriate archwire pressures against attachments that can differentiate between anchor teeth and those to be moved, results in what has been described as the “Majesty of Tip-Edge.”
The design of the Tip-Edge archwire slot creates anchorage potential in every tooth in the anchorage arch. In this manner it is easy to correct either Class II or III malocclusions, as compared to conventional edgewise appliances that create anchorage in every tooth.
In deep bite cases archwire forces cause the anchor molars to temporarily elevate ever so slightly while reciprocally intruding the anterior teeth. This results in the rapid elimination of anterior tooth contact and interferences. [Read More]
- PAR Excellence in Tip-Edge and Straight-Wire by Jayne E. Harrison, BDS, FDS, MOrth, MDentSci
This paper reports a study which I carried out to compare my first Tip-Edge cases, treated at Glan Clwyd Hospital, with the first cases I treated with the Straight-Wire Appliance® (SWA) at Liverpool University Dental Hospital. The severity of malocclusions treated are compared, as well as the quality of the results obtained, the length of treatment and number of appointments. [Read More]
- Rectangular or Round Wire In Stage Three by Peter C. Kesling, D.D.S., Sc.D.
When approaching the end of stage two in the Differential Straight-Arch® Technique, one has to make the decision whether to finish the case with round or rectangular archwires. Continuing with round wires can simplify treatment for the operator—no need for more archwires. In other cases the use of rectangular archwires can provide automatic torque to all teeth that require it, from an anchor molar to a lingually positioned mandibular lateral incisor.
A recent survey of offices using Tip-Edge brackets indicates varying preferences around the globe from 18% round and 82% rectangular in Great Britain to 50% each in the United States. Choices are affected by previous appliances—Begg or Edgewise—and length of time since last Tip-Edge course. The trend is definitely away from round wires and toward rectangular. However, there remain indications and advantages for each. [Read More]
- Apparent Sinus Involvement Presents No Problem in Space Closure by Christopher Kesling, D.D.S., M.S.
A patient presented to the clinic of Drs. John and Maori Kaku of Tokyo, Japan. He was 32 years old and Asian with a Class 11, Division 1 malocclusion. A severe overjet of 8.9 mm and overbite of 80 percent were present with limited crowding in both arches.
Cephalometric records revealed an underlying Class II skeletal pattern (Wits = +5.O mm) due to a retrognathic mandible with the mandibular incisors located 3 mm ahead of the A-Po line (Japanese normal for this value is +5.0 mm). The patient’s facial profile was convex with a protrusive maxillary lip.
The correction of such adult Class II malocclusions often requires the extraction of teeth in both arches. If, however, the mandibular arch is we1l aligned with the mandibular incisors on or near the A-Po line, the preferred treatment plan is often the extraction of teeth in the maxillary arch only. [Read More]