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Brushing Teeth on Shabbat: Difference between revisions

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*Rav Shlomo Zalman Auerbach says that the first leniency is not true because the people are happy with the squeezing of the toothpaste because that's what cleans their teeth. He also rejects the second because the liquid doesn't go to waste until after it fulfills its purpose. However, he is still mekil with regard to sechita for brushing your teeth for the third reason. <ref> Rav Shlomo Zalman's opinion is written in a letter in response to the sridei esh that's quoted in Siman 34 of the Sridei Esh. </ref>
*Rav Shlomo Zalman Auerbach says that the first leniency is not true because the people are happy with the squeezing of the toothpaste because that's what cleans their teeth. He also rejects the second because the liquid doesn't go to waste until after it fulfills its purpose. However, he is still mekil with regard to sechita for brushing your teeth for the third reason. <ref> Rav Shlomo Zalman's opinion is written in a letter in response to the sridei esh that's quoted in Siman 34 of the Sridei Esh. </ref>


===Uvdin Dichol=== <ref> There is no clear definition of what uvdin dichol is. However, Rav Shlomo Zalman defines it as if you do something during the week that would be assur on Shabbat and then on Shabbat do the same actions with the same objects just a little differently. (Rav Shlomo Zalman Meor Hasshabbat Letter 2:2) Rav Moshe (Iggerot Moshe 4:74) defines it as something that is an easily recognizable weekday activity even if it requires no melachot to be done. </ref>
===Uvdin Dichol===  
<ref> There is no clear definition of what uvdin dichol is. However, Rav Shlomo Zalman defines it as if you do something during the week that would be assur on Shabbat and then on Shabbat do the same actions with the same objects just a little differently. (Rav Shlomo Zalman Meor Hasshabbat Letter 2:2) Rav Moshe (Iggerot Moshe 4:74) defines it as something that is an easily recognizable weekday activity even if it requires no melachot to be done. </ref>
Mishna berura (314:41) says that to use a vegetable grinder to grind eggs or cheese would be uvdin dichol. Also says in (303:87) that you can't use a comb even to lightly brush your hair to one side, but instead should get a special brush for Shabbat with soft bristles so its not uvdin dichol.  
Mishna berura (314:41) says that to use a vegetable grinder to grind eggs or cheese would be uvdin dichol. Also says in (303:87) that you can't use a comb even to lightly brush your hair to one side, but instead should get a special brush for Shabbat with soft bristles so its not uvdin dichol.  
*Minchat Yitzchak ibid and Rav Ovadia say that this would be a problem unless a special toothbrush is used. <ref> Seemingly then Rav Ovadia would be using a definition of uvdin dichol other than the one's of Rav Shlomo Zalman and Rav Moshe, because for them there is no way to violate uvdin dichol on an action that's permissible during the week. </ref>
*Minchat Yitzchak ibid and Rav Ovadia say that this would be a problem unless a special toothbrush is used. <ref> Seemingly then Rav Ovadia would be using a definition of uvdin dichol other than the one's of Rav Shlomo Zalman and Rav Moshe, because for them there is no way to violate uvdin dichol on an action that's permissible during the week. </ref>
*Rav Schachter (quoted by Rabbi Leibowitz ibid, using the rule that the Chazon Ish said that the parameters of uvdin dichol are defined by the poskim of each generation (39 melachos, Introduction to Shabbos endnote 522) said intuitively he feels there’s no problem of uvdin dichol with brushing teeth.
*Rav Schachter said intuitively he feels there’s no problem of uvdin dichol with brushing teeth. <ref> Quoted by Rabbi Leibowitz ibid, using the rule that the Chazon Ish said that the parameters of uvdin dichol are defined by the poskim of each generation (39 melachos, Introduction to Shabbos endnote 522) </ref>