Dental review; devoted to the advancement of dentistry. . wire is soldered to the molarband, and this passes forward and the end, in the form of a hook,engages the staple on the cuspid band. A spur is soldered to themolar band which, when the teeth are together, occludes with on the upper molar band. Another small spur should be soldered 218 THE DENTAL REVIEW. on the distal side of the lingual surface of the molar band, it beingjust long enough to project onto the second molar. This will steadythe first molar and prevent it from expanding, which is sometimesliable to occur. The wire f
Dental review; devoted to the advancement of dentistry. . wire is soldered to the molarband, and this passes forward and the end, in the form of a hook,engages the staple on the cuspid band. A spur is soldered to themolar band which, when the teeth are together, occludes with on the upper molar band. Another small spur should be soldered 218 THE DENTAL REVIEW. on the distal side of the lingual surface of the molar band, it beingjust long enough to project onto the second molar. This will steadythe first molar and prevent it from expanding, which is sometimesliable to occur. The wire from the molar to the cuspid staple maybe arranged a little different also and with good results. The wiremay be soldered to the end of the screw of the molar band and thestaple on the cuspid will then be placed on the lingual surface of theband. Then the wire crossing the incisors will end at the center ofthe cuspid band. This is a very good appliance, especially for those patients whocan be seen often during the retention period. For patients seen sel-. Fig. 4. The hooks over cuspids may be placed as shown by dotted will in many cases be better as the line of the pull from thesoldered joint on the lateral band to the hook on the lower molar bandwill then be straighter and therefore less liable to displace the lateralincisor. dom during retention it will perhaps be better to use an appliancewhich is solid, that is, all in one piece from molar to molar. Suchan appliance is the inner arch retainer. See Fgs. 4, 5, 6, 7. INNER ARCH RETAINER. These retainers are very reliable and will nearly always do whatwe ask of them. The inner wire is soldered to the ends of the molarbands, the arch resting against the teeth as it passes around frommolar to molar. On the lower bands are made for the cuspids whichhave small spurs soldered on their lingual surfaces. These are bentover the arch and serve a double purpose of retaining any rotations ORIGINAL COMMUNICATIONS. 219 and also to
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