Shabbos6: 5
יוֹצְאָה אִשָּׁה בְחוּטֵי שֵׂעָר, בֵּין מִשֶּׁלָּהּ, בֵּין מִשֶּׁל חֲבֶרְתָּהּ, בֵּין מִשֶּׁל בְּהֵמָה; וּבְטֹטֶפֶת, וּבְסַנְבּוּטִין, בִּזְמַן שֶׁהֵן תְּפוּרִין; בְּכָבוּל וּבְפֵאָה נָכְרִית לֶחָצֵר; בְּמוֹךְ שֶׁבְּאָזְנָהּ, וּבְמוֹךְ שֶׁבְּסַנְדָּלָהּ, וּבְמוֹךְ שֶׁהִתְקִינָה לְנִדָּתָהּ; בְּפִלְפֵּל, וּבְגַרְגִּיר מֶלַח, וּבְכָל דָּבָר שֶׁתִּתֵּן לְתוֹךְ פִּיהָ, וּבִלְבַד שֶׁלֹּא תִתֵּן לְכַתְּחִלָּה בַשַּׁבָּת — וְאִם נָפַל, לֹא תַחֲזִיר. שֵׁן תּוֹתֶבֶת וְשֵׁן שֶׁל זָהָב — רַבִּי מַתִּיר, וַחֲכָמִים אוֹסְרִים.
A woman may go out with bands of hair, whether of her own [hair], or of her companion’s [hair], or of an animal’s [hair]; or with a frontlet, or with head bangles, when they are sewn; or with a forehead pad or with a wig into a courtyard; with wadding in her ear, or with wadding in her sandal, or with wadding she pre-pared for her menses; with a pepper, or with a globule of salt, or with anything that she will put into her mouth, provided that she does not put [it in] initially on the Sabbath — and if it fell [out], she may not put [it] back. A false tooth or a tooth with a gold crown — Rabbi [Yehudah HaNassi] permits [them], but the Sages prohibit [them].