before explaining the disclosed embodiments of the present invention in detail it is to be understood that the invention is not limited in its applications to the details of the particular arrangements shown since the invention is capable of other embodiments . also , the terminology used herein is for the purpose of description and not of limitation . 1 . mouth 2 . upper molar 6 . lower molar 10 . elastic band embodiment 12 . upper molar strap 14 . elastic band 16 . lower molar strap 20 . magnet and elastic band embodiment 22 . upper molar strap 23 . upper magnet 25 . upper housing for upper magnet 24 . elastic band 26 . lower molar strap 27 . lower magnet 29 . lower housing for lower magnet 30 . shock absorber and elastic band embodiment 32 . upper molar strap 34 . elastic band 36 . lower molar strap 38 . shock absorber with piston 39 . second lower molar strap 40 . strap with mastication sensor embodiment 42 . strap 44 . strength sensor 46 . frequency sensor 50 . hybrid embodiment the novel oral device increases the work and energy in chewing and consequently is an obstacle to prolonged mastication . the invention can have similar results to stapling or banding the stomach and lead to decreased eating . with the invention , prolonged chewing would cause jaw muscle fatigue and satiation . fig1 is a lower perspective view of an elastic band 14 and molar straps 12 , 16 embodiment 10 . fig2 is a side view of the elastic band 14 and molar straps 12 , 16 embodiment 10 of fig1 . fig3 is an upper perspective view of the elastic band 14 and molar straps 12 , 16 embodiment 10 of fig1 . fig4 a is a perspective view of the band 14 and straps 12 , 16 of the preceding embodiment 10 installed in an open mouth 1 . fig4 b is a perspective view of the installed band 14 and straps 12 , 16 of fig4 a in a closed mouth 1 . referring to fig1 - 4b , the upper molar strap 12 can be strapped about an upper left molar tooth 2 with the lower molar strap 16 strapped to a lower left molar tooth 6 . a second set embodiment 10 can be similarly mounted to an upper right molar tooth and a lower left molar tooth . the straps 12 , 16 can be formed from material such as plastic , elastomer , and the like for tightly being attached and anchored to each molar tooth . the elastic band 14 can be similar to a rubber band used with orthodontic braces having an elasticity when stretched which causes the band to retract back to its &# 39 ; original unstretched position . the elastic band 14 increases resistance of opening the mouth 1 during chewing . with the installed elastic band 14 , there is an increased resistance every time the mouth would be opened during chewing . fig5 is a side perspective view of a magnet 23 , 27 and elastic band 24 embodiment 20 . fig6 is another side perspective view of a magnet 23 , 27 and elastic band 24 embodiment 20 . fig7 a is a front perspective view of the magnet 23 , 27 and band 24 embodiment 20 of fig5 - 6 installed with mouth 1 in an open position . fig7 b is another front view of the installed magnet 23 , 27 and band 24 embodiment 20 of fig7 a with mouth 1 in a closed position . fig7 c is a side view of the magnet 23 , 27 and band 24 embodiment 20 installed in a mouth 1 of fig7 a in an open position . fig7 d is a side view of the magnet 23 , 27 and band 24 embodiment 20 installed in a mouth 1 of fig7 b in a closed position . referring to fig5 - 7d , an upper molar strap 22 with a first magnet 23 can be strapped about an upper left molar 2 and a lower molar strap 26 with a second magnet 27 having a similar pole as the first magnet can be strapped about a lower left molar 6 . an identical similar pole magnets and elastic band embodiment 20 can be mounted to an upper right molar and a lower right molar , respectively . an elastic band 24 can have ends attached to the upper molar strap 22 and lower molar strap 26 . an upper housing 25 attached to the upper molar strap 22 can have a first magnet 23 mounted in a lower side . a lower housing 29 attached to the lower molar strap 26 can have a second magnet 27 with a similar pole to the first magnet 23 mounted in an upper side . the first and second magnets 23 , 27 can both be positive so as to cause opposing forces therebetween . the magnets 23 , 27 can be such as those shown and described in u . s . published patent applications : 2003 / 0075186 to florman and 2003 / 0059737 to hall , which are both incorporated by reference . replaceable magnets having similar poles 23 , 27 can be inserted on the housings 25 , 29 for variable levels of resistance . the replaceable magnets 23 , 27 can offer different levels of resistance . the elastic band 24 can also offer an extra level of resistance and can also limit the mouth opening between the lower jaw and the upper jaw to add further work during chewing . additionally , small replaceable batteries inside the respective housings 25 , 29 can be attached to the magnets 23 , 27 to further increase and adjust the opposing forces of the similar pole magnets 23 , 27 . the magnets can include ferromagnets or electromagnets with an inserted battery . the strength of the magnet can be electronically controlled with signals from outside as well as switched on and off as needed for meals and kept off otherwise . the magnets can also be recharged that can be recharged remotely by induction , and the like , without having to remove the batteries from their respective housings . fig8 is a perspective view of another embodiment 30 of a shock absorber 38 with elastic band 34 and molar straps 32 , 36 , 39 embodiment 30 . fig9 is a side view of the shock absorber 38 with elastic band 34 and molar straps 32 , 36 , 39 embodiment 30 of fig8 . fig1 is another perspective view of the shock absorber 38 with elastic band 34 and molar straps 32 , 36 , 39 embodiment 30 of fig8 . fig1 is a side view of the shock absorber 38 with elastic band 34 and straps 32 , 36 , 39 installed in a mouth 1 . fig1 a is an enlarged view of the installed shock absorber 38 and elastic band 34 of fig1 . fig1 b is a perspective view of the installed shock absorber 38 and elastic band 34 of fig1 in an open mouth 1 . fig1 c is a perspective view of the installed shock absorber 38 and elastic band 34 of fig1 in a closed mouth 1 . referring to fig8 - 11c , a first shock absorber and elastic band embodiment 30 can include an upper molar strap 32 can be strapped to an upper left molar 2 and a lower molar strap 36 can be attached to a lower left molar 6 . a second shock absorber and elastic band embodiment 30 can be similarly attached to an upper right molar and a lower right molar . an elastic band 34 can have ends attached to the upper molar strap 32 and the lower molar strap 36 . a shock absorber 38 having one side with a piston which telescoping inserts in and out of a second side can be attached to the upper molar strap 32 and to a second lower molar strap 39 . the second lower strap can be attached to a second lower molar 9 behind the first lower molar 6 . the combination of the elastic band 34 and shock absorber with piston 38 can offer different levels of resistance , and can also limit the mouth opening between the lower jaw and the upper jaw to add further work during chewing . fig1 is a top view of a band embodiment 40 with sensors 44 , 46 for sensing strength and frequency ( similar to a pedometer ) of the mastication of a chewer . fig1 is a side view of the band 40 with sensors 44 , 46 of fig1 . fig1 a bottom view of the band 40 with sensors 44 , 46 of fig1 . a strap 42 can have a sensor for sensing strength 44 and frequency 46 of a chewer . the strap 42 can be strapped about a molar tooth adjacent to either the upper and lower molar teeth which the resistance devices of the preceding figures are mounted to . fig1 a is a perspective view of an installed hybrid embodiment 50 of magnet embodiment 20 , elastic band embodiment 10 , shock absorber embodiment 30 and sensors 40 installed in an open mouth 1 . fig1 b is another perspective view of the installed hybrid embodiment 50 of fig1 a in a closed mouth 1 . fig1 c is a side view of the installed hybrid embodiment 50 of fig1 a in an open mouth 1 . fig1 d is a side view of the installed hybrid embodiment 50 of fig1 b in a closed mouth 1 . the hybrid embodiment 50 can combine an elastic band embodiment 10 , magnet embodiment 20 and shock absorber embodiment 30 together with sensor embodiment 40 . the combination of the elastic band embodiment 10 , magnet embodiment 20 and shock absorber embodiment 30 can offer different levels of resistance , and can also limit the mouth opening between the lower jaw and the upper jaw to add further work during chewing . the strength sensor 44 and frequency sensors 46 can send data remotely and wirelessly to a receiver such as a smart phone and the like , such as but not limited to an iphone ®, galaxy ®, blackberry ®, and the like . collected data can be displayed to show the chewing strength and frequency when using and not using the installed embodiments . the collected data can be used by professionals such as by the orthodontist to adjust resistance with the embodiments . the collected data can be used to determine the amount of increased energy required to compress the device for chewing . sensors 44 , 46 can provide information about strength of the chewing muscles , the number of times the person has chewed and other relevant data for helping with weight loss . the embodiments can be used with or without partial dentures with the device fitting behind the molars . this method of installation can avoid surgery as these devices can be removed like mouth guards and dentures . the novel invention allows for minimal surgical intervention which is important . the convenient reversibility of the procedure is important for the safety of the subject . there is concern for safety of the procedure in people having oral disease such as gingivitis , arthritis of the temporomandibular joint , avascular necrosis of the jaw and other unhealthy conditions of the jaw . with the invention there may be need for regular monitoring of the device by the dentists . the importance of hygiene of the device can be emphasized for safety . the use of the device can be attached to partial dentures and does not require a surgical procedure . a removable device attached to partial dentures can be more hygienic . there would be less risk as there would not be need for anesthesia as required during the procedures for implanted devices . a possible disadvantage of these type of devices would be to give the person the option of removing the device during meals or forgetting to insert the device while eating . this would interfere with the weight loss . while the invention has been described , disclosed , illustrated and shown in various terms of certain embodiments or modifications which it has presumed in practice , the scope of the invention is not intended to be , nor should it be deemed to be , limited thereby and such other modifications or embodiments as may be suggested by the teachings herein are particularly reserved especially as they fall within the breadth and scope of the claims here appended .
devices and methods for assisting weight control where the device is inserted into the mouth of a patient between opposing rear molar teeth . the inserted devices cause an increase in resistance to chewing , which then slows eating by the person . the devices can include elastic bands , magnets , shock absorbers , combinations , thereof and sensors for detecting strength and frequency of chewing .