Hi. Orthodontic treatment or braces do not lead to weakening of teeth. It is the most preferred and successful treatment method to close gaps between teeth. Please get it done by an experienced orthodontist.
The best way to get the gap filled is with braces or invisible aligners but since you are not interested in getting the braces treatment done then the next best treatment option is getting the direct or indirect veneers. It can take care of the gap and if done properly would last for long time.
Not at all . Instruments used for scaling can never create gap .. gaps are created due to presence of tartar / deposit on teeth .. which is not cleaned on regular basis ...it creates gaps in the gums ..moment the portion is cleaned u feel there is gap .. you just feel the actual portion of teeth that you have later when teeth are cleaned and gums heAl .. you recover from that gap as well ..
Gap between teeth, specially upper front teeth, can mar the appearance and smile of a face & therefore I can completely understand your predicament. A short course of orthodontic treatment (braces) can truly transform your smile. Please consult an Orthodontist (braces specialist) to understand the details of treatment including cost. We run a state of the art Dental Braces Centre (Smiles N Braces) here in Jamshedpur. You can contact us if you wish to. All the best.