Winged vs. Wingless Some dentists prefer winged, which is actually attached to the dam prior to taking it to the mouth, while others prefer wingless. The Editorial Team tend to favor winged (60%) compared to the 40% who preferred wingless.
+ More rapid placement of dam.
+ Less chance to tear the dam stretching it over the clamp.
+ Less chance of popping off tooth and going down patient's throat.
- Dam can obscure teeth, making it more difficult to see if correct tooth is being clamped and if the clamp is being applied to the tooth correctly.
- Must stretch dam and open clamp at the same time, making clamp's placement more difficult.
- Clamp can slip off dam during placement.
+ Clamp can be placed more rapidly and properly, since there is no dam to obscure vision.
+ Less projections on clamp itself, allowing better access to teeth.
- Stretching dam over clamp in the mouth can tear dam and/or dislodge clamp.
- Clamp must be ligated with floss to facilitate its retrieval if it slips off tooth during placement.
Suggestions for clamps
#3 Most maxillary molars.
#7 Most mandibular molars.
#8 Maxillary molars with no suprabulge. Will grab onto root surface.
#8A Small maxillary molars with no suprabulge. Will grab onto root surface.
#14A Mandibular molars with no suprabulge. Will grab onto root surface.
#14 Small mandibular molars with no suprabulge. Will grab onto root surface.
#2A Most premolars.
#2 Small premolars.
#212 Anterior teeth.