How do I say "from now on, every time I hear 拔, I will think of you going to the dentist"?
&quot;从此我一听到“拔”那个字就记起你&quot;
&quot;from now on&quot; is translated as &quot;從今以後&quot;, not just &quot;从此&quot; (since this moment/ since that moment)
&quot;记起&quot; means &quot;remember&quot;, you should use &quot;会想起&quot; (will think of) instead

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在牙医时
&quot;牙医&quot; means &quot;dentist&quot;, which is a person, you should either write &quot;在牙医診所时&quot; (when you were at the dentist's office) or &quot;去看牙医时&quot; (when you went to see the dentist)

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拔出牙齿 should be reduced to &quot;拔牙&quot;
&quot;拔牙&quot; is a common verb

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從今以後，我一听到“拔”这个字，就会想起你在牙医診所拔牙
From now on, whenever I hear the word &quot;pull&quot;, I will think of when you were at the dentist's office getting your teeth pulled

It is a good enough sentence, however &quot;你在牙医診所拔牙&quot; is an &quot;image/ scene&quot; in your mind, which is the object for the verb &quot;想起&quot;. Therefore, a better sentence should be:

從今以後，我一听到“拔”这个字，就会想起你在牙医診所拔牙这件事

Use 这件事 (this event) instead of 那件事 (that event) because it is an immediate respond to the event you just heard of.
Use “拔”这个字 (the word &quot;pull&quot;) instead of “拔”那个字 (that word &quot;pull&quot;)

從今以後我一听到“拔”这个字就会想起你在牙医診所拔牙的情況/情景

Replace 情況 (situation) or 情景(scene) with 慘況 (horrible scene) would sound much more dramatic