Is a dental implant my best option for a dead tooth?

Hello and thank you for your great question. Usually dark tooth can be fixed with a root canal therapy and a crown. It would be easier to discuss option, if I would be able to see xray of your tooth. In general, if root canal therapy is not an option, implant or a bridge are options to restore front teeth. My rule of thumb is if adjacent front teeth have cavities, are broken or have old crowns, my first recommendation would be a bridge. If adjacent front teeth are healthy and have never had any dental work, I would certainly consider implant first. 
Hope this helps. All the best to you.

its my advice to upload xray so i can guide u better. yes, in my practice also, i give implant as last choice particular wn in aesthetic zone. , but now a days no need to worry about dark line. white colour implants , abutments and crowns are available. only issue is more expensive as compare to regular ones. 

Do you have any xrays you can post? Typically the treatment for a dead tooth would be a root canal and not removal of the tooth. There must be something more happening than just a dead tooth. Implants for front teeth can be done very successfully and look pretty natural. There are ceramic abutments and all ceramic crowns that will minimize or eliminate any darkness at the gum line.

Like my colleague suggests a dental implant is only after all other options have been exhausted. 
A front tooth implant is definitely more challenging than back ones. The positioning of the implant and the management of the bone and soft tissue need to be good to ensure good stability and long term aesthetics. You need to find an experienced implants dentist. 

The best treatment plan for your dental problem can be decided only after the evaluation of your radiograph. Depending on the symptoms described by you, here are my suggestions-
Immediate dental attention- If you have been told that you have a dead tooth in your mouth, it needs dental attention as it is not advisable for you to leave it unattended and wait for an untoward incident like an abscess to occur and then seek treatment for the same.
Removal is not always the RIGHT option- The tooth can be saved through root canal treatment and dental crown placement if it has sufficient supporting bone around it.
If the bone support is less, then removal may be the only option.
Tooth replacement options- Tooth replacement can be done through dental bridge or a dental implant.
Dental Bridge- Dental bridge requires support and that can compromise the condition and health of the neighboring teeth. This is because the supporting teeth are trimmed and are used to support the bridge.
Dental Implants- If you are looking for a PERMANENT solution, then dental implant is the only one you should be looking for. Advancements in dental implant technology has led to tooth replacement in the most natural way possible without the development of dark gum line around the tooth. 

Ensure that only expert hands work on your teeth as expertise, precision and high end technology with supreme quality of materials like dental implants from world renowned brands are key factors governing the success of dental implants.

I always preface by saying xrays and photos are very helpful, and we never want to misguide you.  Based on your description:  If the tooth and its root have good bone support, you may want to consider saving the tooth.  If it's "dead" and the diagnosis is an infection or chronic apical periodontitis, it may need a root canal.  After the root canal, bonding, veneer or crown can be placed over the tooth, depending on how much solid tooth structure there is.  Keep in mind although you currently have no symptoms, it is possible that you may develop an infection or abscess, which will also gradually deteriorate the surrounding bone structure making things more difficult (and expensive) for you later on.  If you alternatively decide that you want to forego saving the tooth or it is determined by your team of doctors that the tooth cannot be saved, an implant is a great option.  If you are concerned with having a dark gum line, have your dentist make you either a "screw-retained" crown if possible, or you can have a zirconia abutment which is essentially a post that is attached to the implant.  The crown then will seat over this abutment.  Zirconia is white, so along with an all-porcelain crown, these will not show any dark gum line.  The only component that can potentially show a dark gum line is the actual implant which is made of titanium.  Be sure that you are working with an excellent surgeon where he/she will ensure you have ample bone support and good, healthy surrounding gum tissue.  As long as you have these, it is doubtful you will show any dark or grey from the implant from the gums receding.  Sometimes the gum tissue can recede depending on the health of the soft tissue and if someone has poor home care.   Another alternative is placing a zirconia implant as opposed to a titanium implant.  An all porcelain bridge is another option, but just keep in mind for a bridge you will have to cut healthy teeth.  Finally there is also something called a Maryland bridge, this is a conservative resin-bonded bridge which requires very little, if any, preparation of the 2 adjacent teeth beside the missing tooth.  This method is technique sensitive however, and may not last very long.  It really depends on the skill and expertise of the clinician.  So don't worry you have options, hope this helps!  Good luck!  

Since all dentists that have examined you all seem to agree that the tooth should be removed, it is more than simply a "dead tooth".  Any tooth that has had root canal therapy is a dead tooth, and many remain in people's mouths.  Since they all suggest removal, it tells me something else is wrong.Bone and gums go through many changes when a tooth is removed, and even more when implants are placed.  If aesthetics is an issue (typically on front teeth), then you should find out about all the issues and decide what is acceptable to you.