Are there any other effective treatments for teeth clenching / grinding other than mouthguards?

Correct the bite: Clenching and grinding can be caused by bite problems, obstructive sleep apnea (osa) and poor posture, especially hip misalignment. Neuromuscular dentistry relaxes muscles and sets the bite to the relaxed position with either a removable bite appliance, orthodontics, coronplasty or reconstruction. Mandibular advancement devices (mad) hold the lower jaw forward, open the airway and improve osa.

Depends: Assuming that the TMJ is not severely compromised and you simply have bruxism (grinding/clenching)...Yes. Mouth/nightguards do not stop the bruxism, they help prevent the damage caused by them. To help manage the cause (typically stress, tight muscles) try hypnosis. Myofascial therapy (it's like a super deep massage) can help as well.

Botox: Botox can be injected into the muscles of mastication (muscles used for chewing). This can weaken them, reducing clenching. This is usually reserved for severe cases, or those cases that are unable to be managed with other therapies.

Conservative therapy: The guard is the most conservative tx to keep the teeth apart and protected. Tooth wear and breakage of restorative work is common due to the strong forces. Is your habit during sleep or daytime?

Not really: Clenching and grinding at night are unconscious habits. The night guard serves to protect the teeth and joints. During daytime, you can train yourself to avoid it.

Bruxism cure?: Clenching and grinding (bruxism) is a very complicated problem which we have so far only partly begun to understand. Mouthguards or night guards help lessen the destructive effects on the teeth, gums, bone, muscles and joints. Many dentists believe that the tendency to brux can be lessened by changing the bite. This is called neurofunctional dentistry. Learn more about it.

Not really: There are many types of mouthguards for grinding and clenching. Over the counter ones actually may be too thick and throw the muscles into more spasms. Dentists can make custom made, well fitting mouthguards, either upper or lower (i like the lower ones.) the guards can be made of soft plastic or hard acrylic...Depends on severity of grinding. For daytime clenching, other types are indicated.

No: You can teach yourself not to grind during the day but for the night time you need a guard.

Teeth grinding: There are some medications that have been shown to be effective at reducing teeth grinding during sleep. Also, if a person has a sleep related breathing disorder and it is treated, sleep grinding is reduced.

Other TMJ therapies: Mouthguards at bedtime are still the most effective way to treat clenching and grinding, but since clenching seems to be related to stress, things that lower your stress level will help reduce your grinding. Regular exercise, meditation, taking walks, relaxing before bedtime with non-exciting books, movies or music can help. One of the best stress reducers is yoga on a regular basis.